Abstract
C19H23NO12S, triclinic, P1̄ (no. 2), a = 8.3926(9) Å, b = 9.0469(6) Å, c = 15.3442(15) Å, α = 78.195(7)°, β = 74.352(9)°, γ = 70.169(8)°, V = 1047.08(18) Å3, Z = 2, Rgt(F) = 0.0538, wRref(F2) = 0.1289, T = 293(2) K.

Tables 1 and 2 contain details on crystal structure and measurement conditions and a list of the atoms including atomic coordinates and displacement parameters.
Data collection and handling.
| Crystal: | Colorless block |
| Size: | 0.24 × 0.20 × 0.20 mm |
| Wavelength: | Mo Kα radiation (0.71073 Å) |
| μ: | 0.5 mm−1 |
| Diffractometer, scan mode: | Bruker SMART, φ and ω-scans |
| θmax, completeness: | 25°, >99% |
| N(hkl)measured, N(hkl)unique, Rint: | 7313, 3665, 0.040 |
| Criterion for Iobs, N(hkl)gt: | Iobs > 2 σ(Iobs), 2399 |
| N(param)refined: | 298 |
| Programs: | Bruker programs [1], SHELX [2, 3] |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).
| Atom | x | y | z | Uiso*/Ueq |
|---|---|---|---|---|
| N1 | 0.1652(3) | 0.2549(3) | 0.63368(15) | 0.0360(6) |
| H1A | 0.275170 | 0.201954 | 0.658044 | 0.054* |
| H1B | 0.144870 | 0.368254 | 0.628144 | 0.054* |
| O1 | −0.2068(3) | 0.4878(3) | 0.72199(14) | 0.0566(7) |
| H1 | −0.288727 | 0.573323 | 0.730965 | 0.085* |
| O2 | 0.0467(3) | 0.2301(3) | 1.09163(15) | 0.0601(8) |
| O3 | 0.1771(3) | 0.0475(2) | 0.85275(13) | 0.0414(6) |
| O4 | 0.6291(3) | −0.3417(2) | 1.26093(13) | 0.0398(6) |
| H13 | 0.701981 | −0.428234 | 1.244576 | 0.060* |
| O5 | 0.5232(3) | −0.0285(2) | 1.33179(14) | 0.0422(6) |
| O7 | 0.3207(3) | −0.1802(2) | 1.39644(14) | 0.0488(6) |
| O6 | 0.2214(3) | 0.0909(2) | 1.32889(14) | 0.0491(7) |
| O8 | 0.1849(3) | 0.5319(3) | 0.51596(16) | 0.0600(7) |
| O9 | 0.4292(3) | 0.4971(2) | 0.40956(15) | 0.0511(6) |
| H9A | 0.411838 | 0.596426 | 0.403738 | 0.077* |
| O10 | 0.5012(3) | 0.7197(2) | 0.77250(14) | 0.0547(7) |
| H10A | 0.421056 | 0.682049 | 0.772626 | 0.082* |
| H10B | 0.489866 | 0.810949 | 0.742016 | 0.082* |
| O11 | 0.7902(3) | 0.3579(2) | 0.23602(16) | 0.0604(8) |
| H11A | 0.882934 | 0.334163 | 0.195233 | 0.091* |
| H11B | 0.814034 | 0.305573 | 0.286023 | 0.091* |
| O12 | 0.8613(3) | 0.1729(3) | 0.39217(16) | 0.0712(8) |
| H12A | 0.970769 | 0.147992 | 0.385195 | 0.107* |
| H12B | 0.834769 | 0.233743 | 0.432725 | 0.107* |
| S1 | 0.36284(11) | −0.05436(9) | 1.32767(5) | 0.0366(3) |
| C1 | −0.1380(4) | 0.4145(4) | 0.7949(2) | 0.0396(8) |
| C2 | −0.1838(4) | 0.4855(4) | 0.8745(2) | 0.0483(9) |
| H2 | −0.264961 | 0.585219 | 0.878628 | 0.058* |
| C3 | −0.1090(4) | 0.4076(4) | 0.9460(2) | 0.0442(9) |
| H3 | −0.140002 | 0.455558 | 0.998768 | 0.053* |
| C4 | 0.0131(4) | 0.2577(3) | 0.94238(19) | 0.0331(7) |
| C5 | 0.0565(4) | 0.1921(3) | 0.8619(2) | 0.0333(7) |
| C6 | −0.0188(4) | 0.2666(3) | 0.78747(19) | 0.0340(7) |
| C7 | 0.0929(4) | 0.1729(3) | 1.0191(2) | 0.0371(8) |
| C8 | 0.2261(4) | 0.0219(3) | 1.00335(19) | 0.0320(7) |
| C9 | 0.2563(4) | −0.0275(4) | 0.9222(2) | 0.0412(8) |
| H9 | 0.341153 | −0.124012 | 0.912699 | 0.049* |
| C10 | 0.3275(4) | −0.0765(3) | 1.07268(19) | 0.0325(7) |
| C11 | 0.3053(4) | −0.0288(3) | 1.15695(19) | 0.0331(7) |
| H11 | 0.223041 | 0.066830 | 1.171306 | 0.040* |
| C12 | 0.4024(4) | −0.1198(3) | 1.22034(19) | 0.0323(7) |
| C13 | 0.5295(4) | −0.2610(3) | 1.1997(2) | 0.0334(7) |
| C14 | 0.5482(4) | −0.3119(4) | 1.1179(2) | 0.0419(8) |
| H14 | 0.628400 | −0.409000 | 1.104434 | 0.050* |
| C15 | 0.4514(4) | −0.2227(4) | 1.0559(2) | 0.0435(9) |
| H15 | 0.468445 | −0.260388 | 1.000999 | 0.052* |
| C16 | 0.0291(4) | 0.1941(3) | 0.7008(2) | 0.0380(8) |
| H16A | 0.072343 | 0.079780 | 0.713493 | 0.046* |
| H16B | −0.072721 | 0.220470 | 0.675527 | 0.046* |
| C17 | 0.2037(4) | 0.2102(3) | 0.5401(2) | 0.0416(8) |
| H17A | 0.100547 | 0.255263 | 0.514939 | 0.050* |
| H17B | 0.236951 | 0.095883 | 0.543056 | 0.050* |
| C18 | 0.3483(4) | 0.2698(3) | 0.4792(2) | 0.0443(9) |
| H18A | 0.371514 | 0.238950 | 0.418980 | 0.053* |
| H18B | 0.452433 | 0.219080 | 0.503064 | 0.053* |
| C19 | 0.3100(4) | 0.4464(4) | 0.4705(2) | 0.0397(8) |
Source of material
The title compound was synthesized via a Mannich reaction. Formaldehyde solution (10 mL, 37%) and sodium 2-hydroxy-5-(7-hydroxy-4-oxo-4H-chromen-3-yl)benzenesulfonate (3.56 g, 0.01 mol) were added to ethanol (200 mL, 95%) and stirred for 0.5 h at 328 K. Then, the saturated solution of 3-aminopropionic acid (0.89 g, 0.01 mol) was added to the mixture. Hot water was added until a transparent solution was obtained. After 10 h reaction time, the mixture was filtered. The residue was dried at 383 K. Sodium 5-(8-(((2-carboxyethyl)ammonio)methyl)-7-hydroxy-4-oxo-4H-chromen-3-yl)-2-hydroxybenzenesulfonate (2.301 g) was obtained. This sodium salt (0.06 g) was added to a mixed solvent (methanol : tetrahydrofurane = 1 : 1, v/v) (60 mL) and sonicated for 10 min. After filtration, a transparent solution was obtained. After 3 days, colorless block crystals of the title compound were obtained.
Experimental details
H atoms were placed in calculated positions and were included in the refinement in the riding model approximation, with Uiso(H) set to 1.2 Ueq(C). According to Table 2 they are unrefined.
Discussion
Sodium 2-hydroxy-5-(7-hydroxy-4-oxo-4H-chromen-3-yl)benzenesulfonate (DSS) is a strongly water-soluble substance, produced by modifying the structure of daidzein [4]. Some studies have shown that DSS possessed excellent biological activities [5], [6], [7]. The Mannich reaction has been considered as an effective method in introducing aminomethyl substituents into the desired flavonoide molecules to improve their biological activities [8], [9], [10], [11], [12], [13], [14]. Our previous investigations showed that DSS can react with glycine, L-proline, L-Threonine by Mannich reaction [15], [16], [17]. The reaction takes place without a catalyst. When the sulfo-groups and carboxyl groups are introduced to daidzein, they can coordinate with some metal ions directly in intriguing ways. In this paper, we report a 3-aminopropanoic acid derivative of DSS.
The title compound contains one zwitterion and three water molecules in the asymmetric unit (cf. the figure). The bond distances and bond angles are in normal ranges [15], [16], [17]. The atoms of the chromen moiety constitute planar rings A (C1—C6) and C (C7—C9/O3/C5/C4) [mean out-of plane deviations are 0.0056 and 0.0144 Å, respectively], with an interplanar angle of 1.9°. There are π ⋯ π stacking interactions between C1—C6 phenyl rings and C10—C15 phenyl rings from adjacent compounds. The centroid-centroid distance is 3.8656(3) Å and the dihedral angle between the two phenyl least square planes is 4.25°. The C19—C18—C17—N1 torsion angle is −58.84°. The compounds shows an intramolecular N1—H1B⋯O8 hydrogen bond of length 2.062 Å. There exist various O—H⋯O and N—H⋯O hydrogen bonds. In the crystal the ylidic title compound and water molecules interact via hydrogen bonds. Together with the π⋯π stacking interactions a three-dimensional network is obtained.
Acknowledgements
This work was supported by the project of education department of Guangxi province (No. YB2014331), the project of undergraduate teaching reform of higher education in Guangxi (No. 2018JGA254) and the subject of “12th Five-Year” Plan of Guangxi Education Science (No. 2015C408).
References
1. Bruker. APEX3, SAINT-Plus, XPREP. Bruker AXS Inc., Madison, WI, USA (2016).Suche in Google Scholar
2. Sheldrick, G. M.: SHELXT − Integrated space-group and crystal-structure determination. Acta Crystallogr. A71 (2015) 3–8.10.1107/S2053273314026370Suche in Google Scholar PubMed PubMed Central
3. Sheldrick, G. M.: Crystal structure refinement with SHELXL. Acta Crystallogr. C71 (2015) 3–8.10.1107/S2053229614024218Suche in Google Scholar PubMed PubMed Central
4. Chen, H.-L.; Miao, J.-H.; Lin, F.-Q.; Pan, W.-G.; Lin, C.-W.: Crystal structure of dipotassium 2-(2-ethoxy-2-oxoethoxy)-5-(7-(2-ethoxy-2-oxoethoxy)-4-oxo-4H-chromen-3-yl)benzenesulfonate), C23H21KO11S. Z. Kristallogr. NCS 229 (2014) 476–478.10.1515/ncrs-2014-0127Suche in Google Scholar
5. Liu, R.; Zhong, X.; Zeng, J.; Huang, Z.; Li, X.; Xiao, H.; Chen, Q.; Li, D.: 3′-daidzein sulfonate sodium inhibits neuronal apoptosis induced by cerebral ischemia-reperfusion. Int. J. Mol. Med. 39 (2017) 1021–1028.10.3892/ijmm.2017.2915Suche in Google Scholar PubMed
6. Ren, P.; Ji, H.; Shao, Q.; Chen, X.; Han, J.; Sun, Y.: Protective effects of sodium daidzein sulfonate on trabecular bone in ovariectomized rats. Pharmacology 79 (2007) 129–136.10.1159/000098115Suche in Google Scholar PubMed
7. Huang, Z.; Li, L.; Li, X.; Cheng, F.; Zeng, J.: Effect of 3′-daidzein sulfonic sodium on the anti-oxidation of retinal ischemia/reperfusion injury in rats. Adv. Exp. Med. Biol. 664 (2010) 585–591.10.1007/978-1-4419-1399-9_67Suche in Google Scholar PubMed
8. Aitmambetov, A.; Khilya, V. P.: Mannich bases and their salts in a series of synthetic isoflavone analogs. Chem. Nat. Compd. 30 (1994) 576–579.10.1007/BF00629866Suche in Google Scholar
9. Frasinyuk, M. S.; Bondarenko, S. P.; Khilya, V. P.: Synthesis of analogs of natural 2′-methoxyisoflavones. Chem. Nat. Compd. 42 (2006) 142–147.10.1007/s10600-006-0063-0Suche in Google Scholar
10. Frasinyuk, M. S.; Mrug, G. P.; Fedoryak, O. D.; Bondarenko, S. P.: Nitrogen-containing apigenin analogs: preparation and biological activity. Molecules 17 (2012) 14748–14764.10.3390/molecules171214748Suche in Google Scholar PubMed PubMed Central
11. Frasinyuk, M. S.; Mrug, G. P.; Fedoryak, O. D.; Bondarenko, S. P.: Synthesis of amino-acid derivatives of formononetin and cladrin. Chem. Nat. Compd. 48 (2012) 570–573.10.1007/s10600-012-0313-2Suche in Google Scholar
12. Frasinyuk, M. S.; Mrug, G. P.; Bondarenko, S. P.; Sviripa, V. M.; Zhang, W.; Cai, X.; Fiandalo, M. V.; Mohler, J. L.; Liu, C.; Watt, D. S.: Application of Mannich bases to the synthesis of hydroxy-methylated isoflavonoids as potential antineoplastic agents. Org. Biomol. Chem. 13 (2015) 11292–11301.10.1039/C5OB01828ESuche in Google Scholar
13. Frasinyuk, M. S.; Mrug, G. P.; Bondarenko, S. P.; Khilya, V. P.; Sviripa, V. M.; Syrotchuk, O. A.; Zhang, W.; Cai, X.; Fiandalo, M. V.; Mohler, J. L.: Antineoplastic Isoflavonoids Derived from Intermediate ortho-Quinone Methides Generated from Mannich Bases. Chem. Med. Chem. 11 (2016) 600–611.10.1002/cmdc.201600008Suche in Google Scholar PubMed PubMed Central
14. Li, Y.; Qiang, X.; Luo, L.; Yang, X.; Xiao, G.; Zheng, Y.; Cao, Z.; Sang, Z.; Su, F.; Deng, Y.: Multitarget drug design strategy against Alzheimers disease: homoisoflavonoid Mannich base derivatives serve as acetylcholinesterase and monoamine oxidase B dual inhibitors with multifunctional properties. Bioorg. Med. Chem. 25 (2017) 714–726.10.1016/j.bmc.2016.11.048Suche in Google Scholar PubMed
15. Chen, H.-L.; Lai, H.-F.; Qin, Y.-L.; Guo, Y.-N.; Chen, T.; Huang, X.-Y.: Synthesis and crystal structure poly[aqua(μ3-2-(((7-hydroxy-3-(4-hydroxy-3-sulfonatophenyl)-4-oxo-4H-chromen-8-yl)methyl)ammonio)acetate-κ4O,O′: O′′:O′′′) sodium] monohydrate, C18H18NNaO11S. Z. Kristallogr. NCS 233 (2018) 417–419.10.1515/ncrs-2017-0321Suche in Google Scholar
16. Chen, H.-L.; Pan, L.-W.; Zhang, H.-Y.; Yin, X.-J.: Synthesis and crystal structure of poly[aqua{μ3-(1S,2S)-1-((7-hydroxy-3-(4-hydroxy-3-sulfonatophenyl)-4-oxo- 4H-chromen-8-yl)methyl)pyrrolidin-1-ium-2-carboxylato-κ4O, O′:O′′: O′′′}sodium(I)] monohydrate, C21H22NNaO11S. Z. Kristallogr. NCS 233 (2018) 469–471.10.1515/ncrs-2017-0360Suche in Google Scholar
17. Chen, H.-L.; Lai, H.-F.; Wei, L.-Q.; Jiang, L.-R.; Su, Y.-X.: Synthesis and crystal structure of trans-tetraqua-bis(2-(((7-hydroxy-3-(4-hydroxy-3-sulfonatophenyl)-4- oxo-4H-chromen-8-yl)methyl)ammonio)acetato-κO)cobalt(II) hexahydrate, C36H48CoN2O28S2. Z. Kristallogr. NCS 232 (2017) 1025–1027.10.1515/ncrs-2017-0153Suche in Google Scholar
©2019 Hai-Lin Chen et al., published by De Gruyter, Berlin/Boston
This work is licensed under the Creative Commons Attribution 4.0 Public License.
Artikel in diesem Heft
- Cover and Frontmatter
- Crystal structure of 1H-indole-5-carboxylic acid – 4,4′-bipyridine (2/1), C14H11N2O2
- Crystal structure of ethyl 2-amino-4-(4-ethoxyphenyl)-5-oxo-4H,5H-pyrano[3,2-c] chromene-3-carboxylate, C23H21NO6
- Crystal structure of ethyl 2-amino-4-(4-bromothiophen-2-yl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate, C16H16BrNO4S
- The crystal structure of 6-amino-2-methyl-8-(4-(methylthio)phenyl)-2,3,8,8a-tetrahydroisoquinoline-5,7,7(1H)-tricarbonitrile – ethanol (1/1), C20H19N5S
- Crystal structure of 6-amino-8-(4-isopropylphenyl)-2-methyl-2,3,8,8a-tetrahydroisoquinoline-5,7,7(1H)-tricarbonitrile-ethanol (1/1), C24H29N5O
- Crystal structure of 1,1′-(ethane-1,2-diyl)bis(3-ethyl-1H-imidazol-3-ium)bis(hexafluorido phosphate), C12H20F12N4P2
- Crystal structure of dimethyl (3aS,6R,6aS,7S)-2-pivaloyl-2,3-dihydro-1H,6H,7H-3a,6:7,9a-diepoxybenzo[de]isoquinoline-3a1,6a-dicarboxylate, C21H25NO8
- Crystal structure of methyl 4-(4-bromothiophen-2-yl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C18H20BrNO3S
- Hydrothermal synthesis and crystal structure of catena-poly[bis(4-((pyridin-4-ylmethyl)amino)benzoato-κ3N:O,O′)zinc(II) – 1,2-di(pyridin-4-yl)ethene – water (1/1/1), C38H34N6O5Zn
- The crystal structure of 1,2-dimethyl-3,4-dinitrobenzene, C8H8N2O4
- Synthesis and crystal structure of trans-tetraaqua-bis(3-(((7-hydroxy-3-(4-hydroxy-3-sulfonatophenyl)-4-oxo-4H-chromen-8-yl)methyl)ammonio)propanoato-κO)zinc(II) tetrahydrate, C38H48N2O26S2Zn
- Crystal structure of diaqua-bis(μ2-6-chloropyridin-2-olato-κ3N,O:O)-tetrakis(chloropyridin-2-olato-κ1O)-bis(penanthroline-κ2N,N′)diterbium(III), C54H38Cl6Tb2N10O8
- Crystal structure of oxidobis(piperidine-1-carbodithioato-κ2S,S′)vanadium(IV), C12H20N2OS4V
- Crystal structure of 2-((tert-butyldimethylsilyl)oxy)-5-methylisophthalaldehyde, C15H22O3Si
- Crystal structure of catena-poly[tetraiodido-(μ2-1,4-bis(2-methyl-1H-imidazol-1-yl)benzene-κ2N:N′)dimercury(II)], C14H14Hg2I4N4
- Crystal structure of tetrakis(n-butyl)-(μ2-1,2-bis(2-oxidobenzoyl)hydrazine-1,2-diido-κ6N,O,O′:N′,O′′,O′′′)ditin(IV), C30H44N2O4Sn2
- Crystal structure of ethyl 2-amino-4-(4-hydroxy-3-methoxyphenyl)-7-methyl-5-oxo-4H,5H-pyrano-[4,3-b]pyran-3-carboxylate, C19H19NO7
- Crystal structure of 3-aminopyrazine-2-carbohydrazide, C5H7N5O
- Crystal structure of ethanol-bis(N-((5-(ethoxycarbonyl)-3,4-dimethyl-1H-pyrrol-2-yl)methylene)benzohydrazonato-κ2N,O)copper(II), C36H42N6O7Cu
- Crystal structure of 3-methyl-2-oxo-2H-chromen-7-yl propionate, C13H12O4
- Crystal structure of 2-(dimethylamino)ethyl 4-aminobenzoate, C11H16N2O2
- Crystal structure of 3-(benzo[d]thiazol-2-ylamino)isobenzofuran-1(3H)-one, C15H10N2O2S
- Crystal structure of 3-((1H-benzo[d]imidazol-2-yl)amino)-2-(1H-benzo[d]imidazol-2-yl)isoindolin-1-one, C22H16N6O
- Crystal structure of (2,2′-bipyridine-κ2N,N′)bis(4-(dimethylamino)phenyldiphenylphosphane-κP)copper(I) tetrafluoroborate, C50H48BCuF4N4P2
- Crystal structure of citric acid–acetonitrile (1/1), C8H11NO7
- Crystal structure of diethyl 2-(4-methoxyphenyl)-1-phenyl-1,2-dihydropyridine-3,5-dicarboxylate, C24H25NO5
- The crystal structure of poly[triaqua-bis(μ3-2,5-dihydroxyterephthalato-κ4O,O′:O′′:O′′′)-(μ4-oxalato-κ4O,O′:O′′,O′′′)cerium(III)], C9H10CeO11
- Crystal structure of 1-(5-(anthracen-9-yl)-3-(4-hydroxyphenyl)-4,5-dihydro-1H-pyrazol-1-yl)propan-1-one, C26H22N2O2
- Synthesis and crystal structure of 5-(8-(((2-carboxyethyl)ammonio)methyl)-7-hydroxy-4-oxo-4H-chromen-3-yl)-2-hydroxybenzenesulfonate trihydrate, C19H23NO12S
- Crystal structure of rac-trans-6,6′-((cyclohexane-1,2-diylbis(azanylylidene))bis(methanylylidene))bis(2-bromophenolato-κ4N,N′,O,O′)-bis(methanol)cobalt(III) chloride, C22H25Br2Co8N2O4Cl
- Crystal structure of 1-((R)-(2′-(dimethylamino)-[1,1′-binaphthalen]-2-yl))-3-((S)-2-hydroxy-1-phenylethyl)thiourea, C31H29N3OS
- Crystal structure and photochemical property of 1,8-bis(p-tolylthio)pyrene, C30H22S2
- Crystal structure of 2-(2-(2-amino-6-chloro-9H-purin-9-yl)ethyl)propane-1,3-diyl diacetate, C14H18ClN5O4
- Crystal structure of ethyl 5-amino-1-(pyridin-2-yl)-1H-pyrazole-4-carboxylate, C11H12N4O2
- Crystal structure of trichloro-(4-chloro-2,6-bis(diphenylmethyl)-N-((pyridin-2-yl)methylene)aniline)-aluminum dichloromethane solvate, C39H31AlCl6N2
- Bis(ethanol-κO)-bis(6-aminopicolinato-κ2N,O)magnesium(II), C16H22O6N4Mg
- Crystal structure of catena-poly[aqua-(μ2-1,7-dicarba-closo-dodecaborane-1,7-dicarboxylato-κ2O:O′)-(1,10-phenanthrolin-κ2N,N′)copper(II)], C16H20B10CuN2O5
- Crystal structure of (1,2-dicarba-closo-dodecaborane-1,2-dithiolato κ2S,S′)-bis(1,10-phenanthroline κ2N,N′)zinc(II), C26H26B10Zn4S2
- Crystal structure of diaqua-bis(1,10-phenanthroline-κ2N,N′)-bis(1,7-dicarba-closo-dodecaborane-1,7-dicarboxylato-κ3O,O′:O′′) dicobalt(II) — ethanol (1/1), C34H46B20Co2N4O11
- Crystal structure of ((5,5′-dimethoxy-2,2′-(1,2-phenylenebis(nitrilomethylidyne)))diphenolato-κ4O,N,O′,N′)copper(II), C22H18N2CuO4
- Crystal structure of 1-(5-bromo-2-(4-methoxyphenyl)-1H-indol-7-yl)ethan-1-ol, C17H14BrNO2
- Crystal structure of (E)-2-(((6-bromopyridin-2-yl)methylene)amino)-3′,6′-bis(diethylamino)spiro[isoindoline-1,9′-xanthen]-3-one, C34H34N5O2Br
- Crystal structure of (Z)-2-((adamantan-1-ylimino)methyl)-5-methoxyphenol, C18H23NO2
- Crystal structure of bis((E)-2-ethoxy-6-(((2-hydroxyethyl)imino)methyl)phenolato-κ2N,O)copper(II), C22H28N2CuO6
- Crystal structure of 2,3-diphenyl-5,6-bis(4-methoxyphenyl)pyrazine, C30H24N2O2
- Crystal structure of dichlorido bis[1-((2,4-dimethyl-1H-imidazol-1-yl)methyl)-1H-benzo[d][1,2,3]triazole-κN]cadmium(II), Cd(C12H13N5)2Cl2
- The crystal structure of 1,5-di(naphthalen-2-yl)-3-(pyridin-2-yl)pentane-1,5-dione, C30H23NO2
- The crystal structure of 2-((3-methylthiophen-2-yl)methylene)malononitrile, C9H6N2S
- The crystal structure of 1,4-dinitroso-2,3,5,6-tetraacetoxy-piperazine, C12H16N4O10
- Crystal structure of bis(2,4,6-trichlorophenyl) malonate, C15H6Cl6O4
- The crystal structure of trans-dichlorido-bis(pyridine-2-carboxylato-κ2N,O)platinum(IV), C12H8Cl2N2O4Pt
- Crystal structure of 3-nitroquinoline 1-oxide, C9H6N2O3
- Crystal structure of 2-(piperidin-1-ium-4-yl)-1H-benzo[d]imidazol-3-ium dichloride dihydrate, C12H21Cl2N3O2
- Crystal structure of (4S,4aS,6aR,6bR,12aS,12bR,14aS,14bR)-3,3,6a,6b,9,9,12a-heptamethyloctadecahydro-1H,3H-4,14b-ethanophenanthro[1,2-h]isochromene, C30H50O
- Crystal structure of (E)-4-((2-fluoro-3-(trifluoromethyl)benzylidene)amino)-3-methyl-1H-1,2,4-triazole-5(4H)-thione, C11H8F4N4S
- Crystal structure of 5-(4-fluorophenyl)-4-methyl-2,4-dihydro-3H-1,2,4-triazole-3-thione, C9H8FN3S
- Crystal structure of catena-poly[(1-(4-fluorophenyl)-N–(5-((trimethylstannyl)thio)-1,3,4-thiadiazol-2-yl)methanimine], (C12H14FN3S2Sn)n
- The crystal structure of 4-(methoxycarbonyl)benzoic acid, C9H8O4
- The crystal structure of N,N′-(6-(thiophen-2-yl)-1,3,5-triazine-2,4-diyl)bis(2-methylpropane-2-sulfonamide) – ethyl acetate(2/1), C34H54N10O6S6
- Crystal structure of N′-(1-(2-hydroxyphenyl)ethylidene)-5-methyl-1-phenyl-1H-1,2,3-triazole-4-carbohydrazide, C18H17N5O2
- Crystal structure of 3-(4-methoxyphenyl)-1-phenylprop-2-yn-1-one, C16H12O2
- Crystal structure of N′-(1-(benzofuran-2-yl)ethylidene)-2-cyanoacetohydrazide, C13H11N3O2
- Crystal structure of hexa-μ2-chlorido-μ4-oxido-tetrakis(1-vinyl-1H-imidazole-κN)tetracopper(II), C20H24Cu4Cl6N8O
- Crystal structure of N′-((1E,2E)-4-(7-methoxy-2-oxo-2H-chromen-8-yl)-2-methylbut-2-en-1-ylidene)-4-methylbenzenesulfonohydrazide, C22H22O5N2S
- Crystal structure of 2-acetyl pyrene, C18H12O
Artikel in diesem Heft
- Cover and Frontmatter
- Crystal structure of 1H-indole-5-carboxylic acid – 4,4′-bipyridine (2/1), C14H11N2O2
- Crystal structure of ethyl 2-amino-4-(4-ethoxyphenyl)-5-oxo-4H,5H-pyrano[3,2-c] chromene-3-carboxylate, C23H21NO6
- Crystal structure of ethyl 2-amino-4-(4-bromothiophen-2-yl)-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carboxylate, C16H16BrNO4S
- The crystal structure of 6-amino-2-methyl-8-(4-(methylthio)phenyl)-2,3,8,8a-tetrahydroisoquinoline-5,7,7(1H)-tricarbonitrile – ethanol (1/1), C20H19N5S
- Crystal structure of 6-amino-8-(4-isopropylphenyl)-2-methyl-2,3,8,8a-tetrahydroisoquinoline-5,7,7(1H)-tricarbonitrile-ethanol (1/1), C24H29N5O
- Crystal structure of 1,1′-(ethane-1,2-diyl)bis(3-ethyl-1H-imidazol-3-ium)bis(hexafluorido phosphate), C12H20F12N4P2
- Crystal structure of dimethyl (3aS,6R,6aS,7S)-2-pivaloyl-2,3-dihydro-1H,6H,7H-3a,6:7,9a-diepoxybenzo[de]isoquinoline-3a1,6a-dicarboxylate, C21H25NO8
- Crystal structure of methyl 4-(4-bromothiophen-2-yl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C18H20BrNO3S
- Hydrothermal synthesis and crystal structure of catena-poly[bis(4-((pyridin-4-ylmethyl)amino)benzoato-κ3N:O,O′)zinc(II) – 1,2-di(pyridin-4-yl)ethene – water (1/1/1), C38H34N6O5Zn
- The crystal structure of 1,2-dimethyl-3,4-dinitrobenzene, C8H8N2O4
- Synthesis and crystal structure of trans-tetraaqua-bis(3-(((7-hydroxy-3-(4-hydroxy-3-sulfonatophenyl)-4-oxo-4H-chromen-8-yl)methyl)ammonio)propanoato-κO)zinc(II) tetrahydrate, C38H48N2O26S2Zn
- Crystal structure of diaqua-bis(μ2-6-chloropyridin-2-olato-κ3N,O:O)-tetrakis(chloropyridin-2-olato-κ1O)-bis(penanthroline-κ2N,N′)diterbium(III), C54H38Cl6Tb2N10O8
- Crystal structure of oxidobis(piperidine-1-carbodithioato-κ2S,S′)vanadium(IV), C12H20N2OS4V
- Crystal structure of 2-((tert-butyldimethylsilyl)oxy)-5-methylisophthalaldehyde, C15H22O3Si
- Crystal structure of catena-poly[tetraiodido-(μ2-1,4-bis(2-methyl-1H-imidazol-1-yl)benzene-κ2N:N′)dimercury(II)], C14H14Hg2I4N4
- Crystal structure of tetrakis(n-butyl)-(μ2-1,2-bis(2-oxidobenzoyl)hydrazine-1,2-diido-κ6N,O,O′:N′,O′′,O′′′)ditin(IV), C30H44N2O4Sn2
- Crystal structure of ethyl 2-amino-4-(4-hydroxy-3-methoxyphenyl)-7-methyl-5-oxo-4H,5H-pyrano-[4,3-b]pyran-3-carboxylate, C19H19NO7
- Crystal structure of 3-aminopyrazine-2-carbohydrazide, C5H7N5O
- Crystal structure of ethanol-bis(N-((5-(ethoxycarbonyl)-3,4-dimethyl-1H-pyrrol-2-yl)methylene)benzohydrazonato-κ2N,O)copper(II), C36H42N6O7Cu
- Crystal structure of 3-methyl-2-oxo-2H-chromen-7-yl propionate, C13H12O4
- Crystal structure of 2-(dimethylamino)ethyl 4-aminobenzoate, C11H16N2O2
- Crystal structure of 3-(benzo[d]thiazol-2-ylamino)isobenzofuran-1(3H)-one, C15H10N2O2S
- Crystal structure of 3-((1H-benzo[d]imidazol-2-yl)amino)-2-(1H-benzo[d]imidazol-2-yl)isoindolin-1-one, C22H16N6O
- Crystal structure of (2,2′-bipyridine-κ2N,N′)bis(4-(dimethylamino)phenyldiphenylphosphane-κP)copper(I) tetrafluoroborate, C50H48BCuF4N4P2
- Crystal structure of citric acid–acetonitrile (1/1), C8H11NO7
- Crystal structure of diethyl 2-(4-methoxyphenyl)-1-phenyl-1,2-dihydropyridine-3,5-dicarboxylate, C24H25NO5
- The crystal structure of poly[triaqua-bis(μ3-2,5-dihydroxyterephthalato-κ4O,O′:O′′:O′′′)-(μ4-oxalato-κ4O,O′:O′′,O′′′)cerium(III)], C9H10CeO11
- Crystal structure of 1-(5-(anthracen-9-yl)-3-(4-hydroxyphenyl)-4,5-dihydro-1H-pyrazol-1-yl)propan-1-one, C26H22N2O2
- Synthesis and crystal structure of 5-(8-(((2-carboxyethyl)ammonio)methyl)-7-hydroxy-4-oxo-4H-chromen-3-yl)-2-hydroxybenzenesulfonate trihydrate, C19H23NO12S
- Crystal structure of rac-trans-6,6′-((cyclohexane-1,2-diylbis(azanylylidene))bis(methanylylidene))bis(2-bromophenolato-κ4N,N′,O,O′)-bis(methanol)cobalt(III) chloride, C22H25Br2Co8N2O4Cl
- Crystal structure of 1-((R)-(2′-(dimethylamino)-[1,1′-binaphthalen]-2-yl))-3-((S)-2-hydroxy-1-phenylethyl)thiourea, C31H29N3OS
- Crystal structure and photochemical property of 1,8-bis(p-tolylthio)pyrene, C30H22S2
- Crystal structure of 2-(2-(2-amino-6-chloro-9H-purin-9-yl)ethyl)propane-1,3-diyl diacetate, C14H18ClN5O4
- Crystal structure of ethyl 5-amino-1-(pyridin-2-yl)-1H-pyrazole-4-carboxylate, C11H12N4O2
- Crystal structure of trichloro-(4-chloro-2,6-bis(diphenylmethyl)-N-((pyridin-2-yl)methylene)aniline)-aluminum dichloromethane solvate, C39H31AlCl6N2
- Bis(ethanol-κO)-bis(6-aminopicolinato-κ2N,O)magnesium(II), C16H22O6N4Mg
- Crystal structure of catena-poly[aqua-(μ2-1,7-dicarba-closo-dodecaborane-1,7-dicarboxylato-κ2O:O′)-(1,10-phenanthrolin-κ2N,N′)copper(II)], C16H20B10CuN2O5
- Crystal structure of (1,2-dicarba-closo-dodecaborane-1,2-dithiolato κ2S,S′)-bis(1,10-phenanthroline κ2N,N′)zinc(II), C26H26B10Zn4S2
- Crystal structure of diaqua-bis(1,10-phenanthroline-κ2N,N′)-bis(1,7-dicarba-closo-dodecaborane-1,7-dicarboxylato-κ3O,O′:O′′) dicobalt(II) — ethanol (1/1), C34H46B20Co2N4O11
- Crystal structure of ((5,5′-dimethoxy-2,2′-(1,2-phenylenebis(nitrilomethylidyne)))diphenolato-κ4O,N,O′,N′)copper(II), C22H18N2CuO4
- Crystal structure of 1-(5-bromo-2-(4-methoxyphenyl)-1H-indol-7-yl)ethan-1-ol, C17H14BrNO2
- Crystal structure of (E)-2-(((6-bromopyridin-2-yl)methylene)amino)-3′,6′-bis(diethylamino)spiro[isoindoline-1,9′-xanthen]-3-one, C34H34N5O2Br
- Crystal structure of (Z)-2-((adamantan-1-ylimino)methyl)-5-methoxyphenol, C18H23NO2
- Crystal structure of bis((E)-2-ethoxy-6-(((2-hydroxyethyl)imino)methyl)phenolato-κ2N,O)copper(II), C22H28N2CuO6
- Crystal structure of 2,3-diphenyl-5,6-bis(4-methoxyphenyl)pyrazine, C30H24N2O2
- Crystal structure of dichlorido bis[1-((2,4-dimethyl-1H-imidazol-1-yl)methyl)-1H-benzo[d][1,2,3]triazole-κN]cadmium(II), Cd(C12H13N5)2Cl2
- The crystal structure of 1,5-di(naphthalen-2-yl)-3-(pyridin-2-yl)pentane-1,5-dione, C30H23NO2
- The crystal structure of 2-((3-methylthiophen-2-yl)methylene)malononitrile, C9H6N2S
- The crystal structure of 1,4-dinitroso-2,3,5,6-tetraacetoxy-piperazine, C12H16N4O10
- Crystal structure of bis(2,4,6-trichlorophenyl) malonate, C15H6Cl6O4
- The crystal structure of trans-dichlorido-bis(pyridine-2-carboxylato-κ2N,O)platinum(IV), C12H8Cl2N2O4Pt
- Crystal structure of 3-nitroquinoline 1-oxide, C9H6N2O3
- Crystal structure of 2-(piperidin-1-ium-4-yl)-1H-benzo[d]imidazol-3-ium dichloride dihydrate, C12H21Cl2N3O2
- Crystal structure of (4S,4aS,6aR,6bR,12aS,12bR,14aS,14bR)-3,3,6a,6b,9,9,12a-heptamethyloctadecahydro-1H,3H-4,14b-ethanophenanthro[1,2-h]isochromene, C30H50O
- Crystal structure of (E)-4-((2-fluoro-3-(trifluoromethyl)benzylidene)amino)-3-methyl-1H-1,2,4-triazole-5(4H)-thione, C11H8F4N4S
- Crystal structure of 5-(4-fluorophenyl)-4-methyl-2,4-dihydro-3H-1,2,4-triazole-3-thione, C9H8FN3S
- Crystal structure of catena-poly[(1-(4-fluorophenyl)-N–(5-((trimethylstannyl)thio)-1,3,4-thiadiazol-2-yl)methanimine], (C12H14FN3S2Sn)n
- The crystal structure of 4-(methoxycarbonyl)benzoic acid, C9H8O4
- The crystal structure of N,N′-(6-(thiophen-2-yl)-1,3,5-triazine-2,4-diyl)bis(2-methylpropane-2-sulfonamide) – ethyl acetate(2/1), C34H54N10O6S6
- Crystal structure of N′-(1-(2-hydroxyphenyl)ethylidene)-5-methyl-1-phenyl-1H-1,2,3-triazole-4-carbohydrazide, C18H17N5O2
- Crystal structure of 3-(4-methoxyphenyl)-1-phenylprop-2-yn-1-one, C16H12O2
- Crystal structure of N′-(1-(benzofuran-2-yl)ethylidene)-2-cyanoacetohydrazide, C13H11N3O2
- Crystal structure of hexa-μ2-chlorido-μ4-oxido-tetrakis(1-vinyl-1H-imidazole-κN)tetracopper(II), C20H24Cu4Cl6N8O
- Crystal structure of N′-((1E,2E)-4-(7-methoxy-2-oxo-2H-chromen-8-yl)-2-methylbut-2-en-1-ylidene)-4-methylbenzenesulfonohydrazide, C22H22O5N2S
- Crystal structure of 2-acetyl pyrene, C18H12O