Startseite Synthesis and crystal structure of poly[aqua(μ4-(1R,2S,4R)-4-hydroxy-1-((7-hydroxy-3-(4-hydroxy-3-sulfonatophenyl)-4-oxo-4H-chromen-8-yl)methyl)pyrrolidin-1-ium-2-carboxylate-κ4O:O′:O″:O‴)sodium(I)] monohydrate, C21H22NNaO12S
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Synthesis and crystal structure of poly[aqua(μ4-(1R,2S,4R)-4-hydroxy-1-((7-hydroxy-3-(4-hydroxy-3-sulfonatophenyl)-4-oxo-4H-chromen-8-yl)methyl)pyrrolidin-1-ium-2-carboxylate-κ4O:O′:O″:O‴)sodium(I)] monohydrate, C21H22NNaO12S

  • Hai-Lin Chen ORCID logo , Xiu-Xiang Huang EMAIL logo , Jian-Jing Lan , Dong-Mei Yao , Yan-Ping Wang und Qiu-Ping Liu
Veröffentlicht/Copyright: 8. Juni 2022

Abstract

C21H22NNaO12S, orthorhombic, P212121 (no. 19), a = 7.6850(1) Å, b = 10.8030(1) Å, c = 25.9262(2) Å, V = 2152.42(4) Å3, Z = 4, Rgt(F) = 0.0309, wRref(F2) = 0.0818, T = 100.0(4) K.

CCDC no.: 2173634

Table 1 contains crystallographic data and Table 2 contains the list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal: Colourless block
Size: 0.19 × 0.15 × 0.13 mm
Wavelength: Cu Kα radiation (1.54184 Å)
μ: 2.20 mm−1
Diffractometer, scan mode: ROD, Synergy Custom DW system, ω
θmax, completeness: 75.8°, >99 %
N(hkl)measured, N(hkl)unique, Rint: 12,136, 4,386, 0.021
Criterion for Iobs, N(hkl)gt: Iobs > 2 σ(Iobs), 4,356
N(param)refined: 335
Programs: CrysAlisPRO [1], Diamond [2], SHELX [3, 4]
Table 2:

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2).

Atom x y z Uiso*/Ueq
S1 0.57877 (8) 1.08139 (6) 0.58175 (3) 0.02550 (15)
O1 0.7463 (3) 0.47611 (19) 0.23022 (7) 0.0286 (4)
H1 0.787942 0.512351 0.204348 0.043*
O2 0.8515 (3) 0.87833 (18) 0.40909 (7) 0.0276 (4)
O3 0.5893 (2) 0.54869 (17) 0.40125 (7) 0.0239 (4)
O4 0.7040 (3) 0.8824 (2) 0.65896 (7) 0.0294 (4)
H4 0.673745 0.956861 0.661412 0.044*
O5 0.6809 (3) 1.1576 (2) 0.54750 (11) 0.0471 (6)
O6 0.3944 (2) 1.0892 (2) 0.57065 (9) 0.0338 (5)
O7 0.6172 (3) 1.1030 (2) 0.63621 (9) 0.0438 (6)
O8 0.6169 (3) 0.1521 (2) 0.24948 (7) 0.0340 (5)
H8 0.676190 0.171327 0.223466 0.051*
O9 0.5580 (3) 0.2432 (2) 0.44122 (7) 0.0351 (5)
O10 0.3575 (3) 0.09911 (18) 0.42274 (7) 0.0282 (4)
O11 0.4541 (3) 0.4166 (3) 0.52979 (10) 0.0468 (6)
H11A 0.510741 0.399618 0.558412 0.070*
H11B 0.413711 0.481578 0.546422 0.070*
N1 0.6433 (3) 0.2934 (2) 0.34493 (8) 0.0215 (4)
H1A 0.684130 0.323801 0.379306 0.035 (9)*
C1 0.7489 (3) 0.5534 (3) 0.27112 (10) 0.0240 (5)
C2 0.8322 (4) 0.6699 (3) 0.26934 (10) 0.0262 (5)
H2 0.883529 0.697815 0.238094 0.031*
C3 0.8392 (3) 0.7429 (3) 0.31259 (10) 0.0251 (5)
H3 0.897340 0.820425 0.310994 0.030*
C4 0.7618 (3) 0.7052 (2) 0.35946 (10) 0.0226 (5)
C5 0.6740 (3) 0.5923 (3) 0.35862 (10) 0.0225 (5)
C6 0.6641 (3) 0.5147 (3) 0.31557 (10) 0.0221 (5)
C7 0.7752 (3) 0.7769 (3) 0.40717 (10) 0.0235 (5)
C8 0.6946 (3) 0.7183 (3) 0.45212 (10) 0.0246 (5)
C9 0.6072 (3) 0.6109 (3) 0.44585 (10) 0.0261 (6)
H9 0.553693 0.576261 0.475559 0.031*
C10 0.7030 (3) 0.7688 (3) 0.50536 (10) 0.0237 (5)
C11 0.6487 (3) 0.8873 (3) 0.51764 (10) 0.0250 (5)
H11 0.611995 0.941684 0.490995 0.030*
C12 0.6473 (3) 0.9278 (3) 0.56894 (9) 0.0231 (5)
C13 0.7020 (3) 0.8478 (3) 0.60870 (10) 0.0235 (5)
C14 0.7577 (4) 0.7302 (3) 0.59613 (10) 0.0253 (5)
H14 0.796583 0.676006 0.622571 0.030*
C15 0.7575 (3) 0.6905 (3) 0.54538 (10) 0.0245 (5)
H15 0.794889 0.608796 0.537510 0.029*
C16 0.5549 (3) 0.3997 (3) 0.31741 (10) 0.0241 (5)
H16A 0.526839 0.373901 0.281719 0.029*
H16B 0.443935 0.418681 0.335143 0.029*
C17 0.5184 (3) 0.1853 (3) 0.35387 (9) 0.0234 (5)
H17 0.409794 0.197456 0.333227 0.028*
C18 0.6173 (4) 0.0720 (3) 0.33422 (10) 0.0260 (5)
H18A 0.689775 0.035148 0.361808 0.035 (9)*
H18B 0.536391 0.008292 0.320844 0.041*
C19 0.7296 (4) 0.1249 (3) 0.29125 (10) 0.0265 (5)
H19 0.825174 0.067078 0.281034 0.032*
C20 0.7992 (3) 0.2428 (3) 0.31594 (10) 0.0242 (5)
H20A 0.896474 0.224312 0.339776 0.016 (7)*
H20B 0.839792 0.302040 0.289414 0.020*
C21 0.4740 (3) 0.1766 (3) 0.41114 (10) 0.0245 (5)
Na1a 0.7198 (2) 0.33397 (18) 0.50240 (6) 0.0272 (3)
Na1Ab 0.8296 (4) 0.2694 (3) 0.49229 (9) 0.0272 (3)
O12 0.8998 (3) 0.53901 (19) 0.14507 (7) 0.0305 (4)
H12A 0.822199 0.562859 0.123928 0.046*
H12B 0.955649 0.484429 0.128218 0.046*
  1. aOccupancy: 0.605 (2). bOccupancy: 0.395 (2).

Source of material

The title compound was synthesized via a Mannich reaction. Formaldehyde solution (10 mL, 37%), water (20 mL), trans-4-hydroxy-l-proline (1.97 g, 0.015 mol) and sodium 2-hydroxy-5-(7-hydroxy-4-oxo-4H-chromen-3-yl)benzenesulfonate (3.56 g, 0.01 mol) were added to ethanol (150 mL, 99.5%) and stirred for 24 h at 338 K. Then the mixture was filtered and the residue was collected. Then the residue was dried at 373 K. Sodium 5-(8-(((2S,4R)-2-carboxy-4-hydroxypyrrolidin-1-yl)methyl)-7-hydroxy-4-oxo-4H-chromen-3-yl)-2-hydroxybenzenesulfonate (3.02 g) was obtained. 1H-NMR (400 MHz, D2O) δ: 7.98 (s, 1H, H9), 7.77 (d, J = 8.9 Hz, 1H, H3), 7.67 (s, 1H, H11), 7.17 (d, J = 8.4 Hz, 1H, H15), 6.86 (d, J = 8.9 Hz, 1H, H2), 6.83 (d, J = 8.4 Hz, 1H, H14), 4.58 (m, 1H, H19), 4.50 (s, 2H, H16A, H16B), 4.24 (m, 1H, H17), 3.77 (m, 1H, H20A), 3.28 (m, 1H, H20B), 2.43 (m, 1H, H18A), 2.12 (m, 1H, H18B). 13C-NMR (100 MHz, D2O) δ:176.53 (C7), 172.64 (C21), 161.64 (C1), 155.80 (C13), 153.81 (C5), 153.15 (C9), 132.93 (C15), 128.74 (C11), 127.64 (C12), 127.58 (C3), 122.25 (C10), 121.97 (C8), 117.03 (C4), 115.91 (C14), 114.69 (C2), 103.90 (C6), 69.60 (C17), 68.28 (C19), 60.89 (C20), 48.71 (C16), 37.87 (C18). A mixture of sodium salt described before (0.050 g), water (1 mL) and saturated sodium chloride solution (14 mL) was sealed in a 20 mL vial and sonicated for 5 min. Then the mixture was heated at 358 K for 6 h. Colourless block crystals of the title compound were obtained after 7 days. IR spectra (potassium bromide pellet) were recorded on a Nicolet 6700. IR (v/cm−1): 3,460, 2,068, 1,627, 1,491, 1,441, 1,402, 1,352, 1,329, 1,288, 1,249, 1,163, 1,096, 1,022, 1,001, 958, 906, 844, 831, 794, 781, 725, 713, 636, 541, 478, 466.

Experimental details

Carbon-bound 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). The oxygen-bound and nitrogen-bond H atoms were located on a difference Fourier map. The sodium atoms were disordered. The absolute structure was established by refinement of the Flack parameter (0.020(9) from 1795 selected quotients) using the Parsons–Flack method [5].

Comment

Trans-4-hydroxy-l-proline is an important amino acid that is a valuable chiral building block for the synthesis of pharmaceutical intermediates [6], [7], [8]. In the past decade, trans-4-hydroxy-l-proline derivatives have been gradually recognized as chiral catalysts for many asymmetric reactions, such as Aldol reaction and Michael reaction [9], [10], [11], [12], [13], [14]. Our previous investigations showed that sodium 2-hydroxy-5-(7-hydroxy-4-oxo-4H-chromen-3-yl)benzenesulfonate (DSS) can react with amino acids by Mannich reaction [15], [16], [17], [18]. In this paper, we report a trans-4-hydroxy-l-proline derivative of DSS.

The asymmetric unit of the title structure contains one sodium ion, one ligand, one coordinated water molecule and one uncoordinated water molecule (cf. the figure). The dihedral angle between planar rings B (C10–C15) and C (C7–C9/O3/C5/C4) is 53.46°. There exist various O–H⃛O and N–H⃛O hydrogen bonds. The nitrogen atom N1 is protonated. The sodium atoms were disordered. The Na1 ion is five-coordinated. The Na1A ion is six-coordinated. The bond lengths are Na1–O9 = 2.241 (3) Å, Na1–O11 = 2.339 (3) Å, Na1–O5A = 2.255 (3) Å, Na1–O6A = 2.465 (3) Å, Na1–O10A = 2.326 (3) Å, Na1A–O9 = 2.485 (4) Å, Na1A–O5A = 2.194 (3), Na1A–O6A = 2.290 (3) Å, Na1A–O9A = 2.464 (3) Å, Na1A–O10A = 2.630 (3) Å, Na1A–O11A = 2.298 (4) Å, respectively, which is in the normal range [19]. The sodium coordination polymer is extended to a two dimensional layer along the ab plane. The two-dimensional layers form three-dimensional framework structure by hydrogen bonds. It is obvious that the hydrogen bonds play important roles in the self-assembly and enhance stability of the resultant title structure.


Corresponding authors: Xiu-Xiang Huang, School of Chemical and Biological Engineering, Hechi University, Yizhou District, Hechi, Guangxi, 546300, P. R. China, E-mail:

Funding source: the Foundation of Hechi University

Award Identifier / Grant number: XJ2018GKQ012

Funding source: Guangxi Natural Science Foundation of China

Award Identifier / Grant number: 2020GXNSFBA297138

Funding source: 2021 High-level Talents Scientific Research Startup Fund of Hechi University

Award Identifier / Grant number: 2021GCC021

  1. Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.

  2. Research funding: This work was financially supported by the Foundation of Hechi University (No. XJ2018GKQ012), Guangxi Natural Science Foundation of China (No. 2020GXNSFBA297138) and 2021 High-level Talents Scientifific Research Startup Fund of Hechi University (No. 2021GCC021).

  3. Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2022-04-22
Accepted: 2022-05-19
Published Online: 2022-06-08
Published in Print: 2022-08-26

© 2022 Hai-Lin Chen et al., published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution 4.0 International License.

Artikel in diesem Heft

  1. Frontmatter
  2. New Crystal Structures
  3. Crystal structure of N-((3s,5s,7s)-adamantan-1-yl)-2-(3-benzoylphenyl)propanamide, C26H29NO2
  4. The crystal structure of bis(μ2-5-chloro-2-oxido-N-(1-oxidopropylidene)benzohydrazonato-κ5 N,O,O′:N′,O′′)-octakis(pyridine-κ1 N)trinickel(II) C60H56Cl2N12Ni3O6
  5. The crystal structure of 3-(4-chlorophenyl)-1,5-di-p-tolylpentane-1,5-dione, C25H23ClO2
  6. The crystal structure of 2,4,4-triphenyl-4H-benzo[b][1,4]oxaphosphinin-4-ium bromide – dichloromethane (1/1), C27H22BrCl2OP
  7. The crystal structure of 2-(3,6-di-tert-butyl-1,8-diiodo-9H-carbazol-9-yl)acetonitrile, C22H24I2N2
  8. Crystal structure of 3-phenylpropyl 2-(6-methoxynaphthalen-2-yl)propanoate, C23H24O3
  9. The crystal structure of (4-fluorophenyl)(5-(hydroxymethyl)furan-2-yl)methanol, C12H11FO3
  10. Crystal structure of the dihydrate of tetraethylammonium 1,3,5-thiadiazole-5-amido-2-carbamate, C11H27N5O4S
  11. Crystal structure of (Z)-4-[(p-tolylamino)(furan-2-yl)methylene]-3-phenyl-1-1-p-tolyl-1H-phenyl-1H-pyrazol-5(4H)-one, C28H23N3O2
  12. The crystal structure of (E)-3-(2-chlorophenyl)-1-ferrocenylprop-2-en-1-one, C19H15ClFeO
  13. The pseudosymmetric crystal structure of 3-((1R,2S)-1-methylpyrrolidin-1-ium-2-yl)pyridin-1-ium hexachloridostannate(IV), C10H16N2SnCl6
  14. Crystal structure of (2-(1-hydroxyheptyl)octahydro-8aH-chromene-5,8,8a-triol), C16H30O5
  15. The crystal structure of N-cyclohexyl-3-hydroxy-4-methoxybenzamide, C14H19NO3
  16. Crystal structure of 1-(4-hydroxybenzyl)-4-methoxy-9,10-dihydrophenanthrene-2,7-diol from Arundina graminifolia, C22H20O4
  17. The crystal structure of N-cyclopentyl-3-hydroxy-4-methoxybenzamide, C13H17NO3
  18. The crystal structure of 2,5,5-triphenyl-3,5-dihydro-4H-imidazol-4-one, C21H16N2O
  19. Crystal structure of 1H-1,2,3-Triazolo[4,5-b]-pyridin-4-ium nitrate, C5H5N5O3
  20. Crystal structure of (Z)-4-(((4-bromophenyl)amino)(furan-2-yl)methylene)-2,5-diphenyl-2,4-dihydro-3H-pyrazol-3-one, C26H18BrN3O2
  21. Crystal structure of 2-(4-methoxyphenyl)-3-methyl-1,8-naphthyridine, C16H14N2O
  22. The crystal structure of 3-([1,1′-biphenyl]-2-yl)-1,2-diphenylbenzo[b]phosphole-1-oxide, C32H23OP
  23. The crystal structure of ammonium (E)-4-((4-carboxyphenyl)diazenyl)benzoate, C14H13N3O4
  24. Crystal structure of bis(5-amino-1,2,4-triazol-4-ium-3-yl)methane sulfate, C5H10N8O4S
  25. The crystal structure of phenantroline-κ2 N,N′-bis(6-phenylpyridine-2-carboxylato-κ2 N,O)copper(II), C36H24N4O4Cu
  26. The crystal structure of tris(6-methylpyridin-2-yl)phosphine oxide, C18H18N3OP
  27. The crystal structure of N-(2′-hydroxymethyl-5′-phenyl-3′,4′-dihydro-[1,1′:3′,1″-terphenyl]- 1′(2′H)-yl)-P,P-diphenylphosphinic amide, C37H34NO2P
  28. Crystal structure of (E)-4-(6-(4-(2-(pyridin-4-yl)vinyl)phenoxy)pyrimidin-4-yl)morpholine, C21H20N4O2
  29. Crystal structure of 5-(adamantan-1-yl)-3-[(4-trifluoromethylanilino)methyl]-2,3-dihydro-1,3,4-oxadiazole-2-thione, C20H22F3N3OS
  30. Crystal structure of 2,2-dichloro-1-(4-chloro-1H-indol-1-yl)ethan-1-one, C10H6Cl3NO
  31. The crystal structure of 4-(((3-bromo-5-(trifluoromethyl)pyridin-2-yl)oxy)methyl)benzonitrile, C28H16Br2F6N4O2
  32. The crystal structure of 1H-benzimidazole-2-carboxamide, C8H7N3O
  33. The crystal structure of Histidinium hydrogensquarate, C10H11N3O6
  34. The crystal structure of 3-amino-5-carboxypyridin-1-ium iodide, C6H7IN2O2
  35. Crystal structure of (E)-amino(2-(3-ethoxy-4-hydroxybenzylidene)hydrazineyl)methaniminium nitrate hemihydrate C10H16N5O5.5
  36. Crystal structure of 1,2-bis(4,5-dinitro-1H-imidazol-1-yl)ethane, C8H6N8O8
  37. The crystal structure of diaqua-bis(pyrazolo[1,5-a]pyrimidine-3-carboxylato-κ2N,O)manganese(II), C14H12N6O6Mn
  38. The crystal structure of catena-poly[aqua-2,2′bipyridine-κ2N,N′-(μ2-5-ethoxyisophthalato-κ 4O,O:Oʺ,O′ʺ)cadmium(II)] monohydrate, C20H20CdN2O7
  39. The crystal structure of (1S,3R)-1-(4-isopropylphenyl)-3-(methoxycarbonyl)-2,3,4,9-tetrahydro-1H-pyrido[3,4-b]indol-2-iumchloride monohydrate, C22H27ClN2O3
  40. Crystal structure of 1-isopropyl-3-(prop-1-en-2-yl)-1H-pyrazolo[3,4-d]pyrimidin-4-amine, C11H15N5
  41. The crystal structure of (2,2′-bipyridine-κ2N,N′)- bis(6-phenylpyridine-2-carboxylate-κ2N,O)manganese(II)] monohydrate, C34H26N4O5Mn
  42. Crystal structure of the cocrystal 1,3,5,7-tetranitro-1,3,5,7-tetrazoctane ─ 2,3-dihydroindole (1/1), C12H17N9O8
  43. Crystal structure of 3-acetyl-6-hydroxy-2H-chromen-2-one monohydrate, C11H10O5
  44. Crystal structure of 6,9-diamino-2-ethoxyacridinium 3,5-dinitrobenozate — dimethylsulfoxide — water (1/1/1), C24H27N5O9S
  45. The crystal structure of 4,4′-bipyridinium bis-(2-hydroxy-3-methoxybenzoate), 2(C8H7.68O4)·C10H8.64N2
  46. Crystal structure of (Z)-4-(((4-fluorophenyl)amino)(furan-2-yl)methylene)-5-methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one
  47. The crystal structure of bis(4-chloro-2-(((2-chloroethyl)imino)methyl)phenolato-κ2N,O)-oxidovanadium(IV), C18H16Cl4N2O3V
  48. The crystal structure of 17-(bromoethynyl)-17-hydroxy-10, 13-dimethyl- 1,2,6,7,8,9,10,11,12,13,14,15,16,17-tetradecahydro-3H-cyclopenta[a]phenanthren-3-one, C21H27BrO2
  49. The crystal structure of 4-((6-fluoropyridin-2-yloxy)methyl)benzonitrile, C13H9FN2O
  50. Crystal structure of (Z)-2-(1-bromo-2-phenylvinyl)-5-ethyl-2-methyl-1,3-dioxane-5-carboxylic acid, C15H17Br1O4
  51. Crystal structure of catena-poly[tribenzyl-κ1C-(μ2-6-oxidopyridin-1-ium-3-carboxylato-κ2O:O’)tin(IV)-dichloromethane-methanol (1/1/1), C29H31Cl2NO4Sn
  52. Crystal structure of bis{2-(tert-butyl)-6-((E)-((4-((E)-1-(methoxyimino)ethyl)phenyl)imino)methyl)phenolato-κ2N,O}zinc(II), C40H46N4O4Zn
  53. Crystal structure of diaqua-bis(μ2-2-carboxy-3,4,5,6-tetrafluorobenzoato-κ2O:O′)-bis(phenanthroline-κ2N,N′)-bis(μ2-3,4,5,6-tetrafluorophthalato-κ3O:O,O′)dieuropium(III) – phenanthroline (1/2), C40H19EuF8N4O9
  54. The crystal structure of diaqua-bis(6-phenylpyridine-2-carboxylato-κ2N,O) manganese(II) — water — dimethylformamide (1/2/1), C27H31N3O9Mn
  55. The crystal structure of bis(pyrazolo[1,5-a]pyrimidine-3-carboxylato-κ2N,O)-copper(ii), C14H8N6O4Cu
  56. Crystal structure of poly[(μ2-1-(1-imidazolyl)-4-(imidazol-1-ylmethyl)benzene-κ2N:N′)-(μ3-pyridazine-4,5-dicarboxylate-κ3O:O′:N)]copper(II) hydrate, C19H16CuN6O5
  57. Crystal structure of acrinidinium tetrafluorohydrogenphthalate, C21H11F4NO4
  58. Crystal structure of 2-(1H-pyrazol-3-yl-κN)pyridine-κN-bis(2-(2,4-difluorophenyl)pyridinato-κ2C,N)iridium(III) sesquihydrate, C30H18F4IrN5·1.5[H2O]
  59. Crystal structure of 2-(2-hydroxy-5-nitrophenyl)-5-methyl-1,3-dioxane-5-carboxylic acid, C12H13N1O7
  60. The crystal structure of 1,2-bis(pyridinium-4-yl)ethane diperchlorate, C12H14N2·2ClO4 – a second polymorph
  61. The crystal structure of [(1,10-phenantroline-κ2N,N′)-bis(6-phenylpyridine-2-carboxylato-κ2N,O)manganese(II)] monohydrate, C36H26N4O5Mn
  62. Crystal structure of 1,2-bis(2,2,3,3,5,5,5-heptamethyl-1,1,4,4- tetrakis(trimethylsilyl)pentasilan-1-yl)ditellane, C38H114Si18Te2
  63. Crystal structure of 1,2-bis(2,4-dinitro-1H-imidazol-1-yl)ethane – dimethylformamide (1/1), C11H13N9O9
  64. Crystal structure of (Z)-3-((tert-butylamino) methylene)-2-(2-hydroxynaphthalen-1-yl) chroman-4-one, C24H23NO3
  65. Synthesis and crystal structure of (E)-1-(4-(((E)-3-(tert-butyl)-2-hydroxybenzylidene)amino)phenyl)ethan-1-one O-ethyl oxime, C21H26N2O2
  66. Crystal structure of the double salt bis(5-amino-1,2,4-triazol-4-ium-3-yl)methane hydrogen oxalate hemioxalate, C8H11N8O6
  67. Hydrothermal synthesis and crystal structure of catena-poly[diaqua-bis(μ2-4-[(4-pyridinylmethyl)amino]benzoato-κ2N:O)cobalt(II)]–1,2bi(4-pyridyl)ethene–water (1/1/1), C50H50N8O8Co
  68. Crystal structure of 3-(3-bromophenyl)-1′,3′-dimethyl-2′H,3H,4H-spiro[furo[3, 2-c]chromene-2,5′-pyrimidine]-2′,4,4′,6′(1′H,3′H) tetraone, C22H15BrN2O6
  69. The crystal structure of poly[aqua-(μ2-4,4′- bis(imidazolyl)biphenyl-κ2N:N′)-(μ2-3-nitrobenzene-1,2-dicarboxylato-κ2O:O′)]copper (II) hydrate, C26H21N5O8Cu
  70. The crystal structure of bis(4-(6-carboxy-8-ethyl-3-fluoro-5-oxo-5,8-dihydro-1,8-naphthyridin-2- yl)piperazin-1-ium) adipate tetrahydrate, C36H52F2N8O14
  71. Synthesis and crystal structure of poly[aqua(μ4-(1R,2S,4R)-4-hydroxy-1-((7-hydroxy-3-(4-hydroxy-3-sulfonatophenyl)-4-oxo-4H-chromen-8-yl)methyl)pyrrolidin-1-ium-2-carboxylate-κ4O:O′:O″:O‴)sodium(I)] monohydrate, C21H22NNaO12S
  72. Crystal structure of chlorido-(η6-toluene)(2,2′-bipyridine-κ2N,N′)ruthenium(II) hexafluorophosphate, C17H16ClN2RuPF6
  73. The crystal structure of (R)-6-hydroxy-8-methoxy-3-methylisochroman-1-one, C11H12O4
  74. Crystal structure of catena-poly[(5,5,7,12,12,14-hexamethyl -1,4,8,11-tetraazacyclotetradecane- κ4N,N′,Nʺ,N‴)nickel(II)-(μ2-perchlorato-κ2O:O′)] 3,5-dicarboxybenzoate – methanol (1/2), C27H49ClN4NiO12
  75. The crystal structure of 4-(chloromethyl)benzonitrile, C8H6ClN
  76. The crystal structure of dimethylammonium 8-[(7,9-dioxo-6,10-dioxaspiro[4.5]decan-8-ylidene)methyl]-9-oxo-6,10-dioxaspiro[4.5]dec-7-en-7-olate, C19H25NO8
  77. Crystal structure of (2R,3S,4S,5R,6S)-2-(acetoxymethyl)-6-((1-acetyl-5-bromo-4-chloro-1H-indol-3-yl)oxy)tetrahydro-2H-pyran-3,4,5-triyl triacetate hemihydrate C24H25BrClNO11
  78. The crystal structure of the co-crystal tetrakis[2-(tris(4-methoxyphenyl)stannyl)ethyl]silane – tetrahydrofuran – toluene – tetrahydrofurane (1/1/1), C103H116O13SiSn4
  79. Crystal structure of methyl 3-(1,3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)propanoate, C16H13NO4
  80. Crystal structure of ethyl (Z)-3-amino-2-cyano-3-(2-oxo-2H-chromen-3-yl)acrylate, C15H12N2O4
  81. Crystal structure of methyl 2-(1,3-dioxo-1H-benzo[de]isoquinolin-2(3H)-yl)acetate, C15H11NO4
  82. Crystal structure of catena-poly[diaqua-bis(μ2-1,3-di(1H-imidazol-1-yl)propane-κ2N:N′)cobalt(II)] tetrafluoroterephthalate, C26H28N8O6F4Co
Heruntergeladen am 6.9.2025 von https://www.degruyterbrill.com/document/doi/10.1515/ncrs-2022-0208/html
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