Home Crystal structure of (E)-2-(3,6-bis(diethylamino)-9H-xanthen-9-yl)-N′-(quinoxalin-2-ylmethylene)benzohydrazide, C37H36N6O2
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Crystal structure of (E)-2-(3,6-bis(diethylamino)-9H-xanthen-9-yl)-N′-(quinoxalin-2-ylmethylene)benzohydrazide, C37H36N6O2

  • Jun-Ying Song , Zi-Chuang Wang and Zhen-Qiang Zhang EMAIL logo
Published/Copyright: September 9, 2019
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Zeitschrift für Kristallographie - New Crystal Structures
From the journal Zeitschrift für Kristallographie - New Crystal Structures Volume 234 Issue 6

Abstract

C37H36N6O2, monoclinic, P21/c (no. 14), a = 9.18664(12) Å, b = 14.50209(16) Å, c = 23.1787(3) Å, β = 94.0829(12)°, Z = 4, V = 3080.16(7) Å3, Rgt(F) = 0.0398, wRref(F2) = 0.1041, T = 113.5(4) K.

CCDC no.: 1935393

The asymmetric unit of the molecular structure is shown in the figure. 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:Yellow cube
Size:0.30 × 0.20 × 0.10 mm
Wavelength:Cu Kα radiation (1.54184 Å)
μ:0.65 mm−1
Diffractometer, scan mode:SuperNova, ω
θmax, completeness:71.3°, >99%
N(hkl)measured, N(hkl)unique, Rint:11693, 5815, 0.019
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 5224
N(param)refined:430
Programs:CrysAlisPRO [1], Olex2 [2], SHELX [3], [4]
Table 2:

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

AtomxyzUiso*/Ueq
O10.57825(10)0.89454(6)0.65906(4)0.0285(2)
O20.33937(10)0.58038(6)0.49081(4)0.0298(2)
N10.48452(11)0.77821(7)0.59775(4)0.0204(2)
N20.34460(11)0.80451(7)0.58256(4)0.0216(2)
N30.08810(12)0.97492(7)0.61378(5)0.0282(2)
N4−0.07024(12)0.88213(8)0.52145(5)0.0305(3)
N50.52290(13)0.71922(8)0.32443(5)0.0306(3)
N60.13150(14)0.41521(9)0.64134(5)0.0369(3)
C10.06009(14)0.85670(9)0.54116(6)0.0276(3)
H10.10270.80450.52430.033*
C2−0.12768(14)0.95731(9)0.54800(6)0.0291(3)
C3−0.26626(15)0.99065(10)0.52762(7)0.0364(3)
H3−0.31910.96100.49620.044*
C4−0.32424(16)1.06584(11)0.55329(8)0.0431(4)
H4−0.41721.08850.53940.052*
C5−0.24756(18)1.10972(11)0.59995(8)0.0457(4)
H5−0.28971.16150.61750.055*
C6−0.11295(17)1.07919(10)0.62060(7)0.0395(3)
H6−0.06251.10940.65240.047*
C7−0.04913(15)1.00241(9)0.59430(6)0.0294(3)
C80.14176(14)0.90366(9)0.58694(5)0.0244(3)
C90.29083(14)0.87616(9)0.60586(5)0.0246(3)
H90.34640.91040.63460.030*
C100.59138(13)0.82226(8)0.63287(5)0.0210(2)
C110.72108(13)0.76306(8)0.63168(5)0.0209(2)
C120.85992(14)0.77886(9)0.65789(5)0.0269(3)
H120.88050.83210.68090.032*
C130.96673(14)0.71423(10)0.64924(6)0.0307(3)
H131.06300.72330.66610.037*
C140.93445(14)0.63582(10)0.61600(6)0.0304(3)
H141.00930.59210.61070.036*
C150.79534(14)0.62017(9)0.59039(5)0.0253(3)
H150.77390.56630.56800.030*
C160.68901(13)0.68557(8)0.59853(5)0.0201(2)
C170.53345(12)0.68888(8)0.57155(5)0.0189(2)
C180.43751(12)0.61115(8)0.58916(5)0.0197(2)
C190.42982(13)0.58598(9)0.64700(5)0.0235(3)
H190.49440.61490.67530.028*
C200.33334(14)0.52138(9)0.66503(5)0.0252(3)
H200.33250.50680.70500.030*
C210.23514(14)0.47641(9)0.62432(6)0.0253(3)
C220.24610(14)0.49828(9)0.56604(5)0.0261(3)
H220.18550.46730.53730.031*
C230.34384(13)0.56431(8)0.54948(5)0.0224(3)
C240.43528(13)0.64363(8)0.47032(5)0.0220(2)
C250.43043(14)0.65099(9)0.41051(5)0.0255(3)
H250.36320.61440.38740.031*
C260.52363(14)0.71175(9)0.38383(5)0.0248(3)
C270.62020(14)0.76467(9)0.42058(6)0.0261(3)
H270.68430.0730.40430.031*
C280.62259(13)0.75531(9)0.47963(5)0.0234(3)
H280.69040.79100.50310.028*
C290.52999(12)0.69580(8)0.50651(5)0.0196(2)
C300.11270(16)0.39948(10)0.70262(6)0.0326(3)
H30A0.21010.39450.72360.039*
H30B0.06160.34000.70700.039*
C310.02667(18)0.47554(11)0.73013(7)0.0410(4)
H31A−0.06950.48140.70930.061*
H31B0.07950.53400.72810.061*
H31C0.01470.46010.77070.061*
C32a−0.00444(19)0.39839(12)0.60262(9)0.0276(5)
H32Aa−0.09010.39810.62620.033*
H32Ba−0.01740.44940.57430.033*
C33a0.0020(2)0.30865(15)0.57076(12)0.0526(7)
H33Aa0.08110.31090.54450.079*
H33Ba−0.09100.29800.54840.079*
H33Ca0.02030.25830.59860.079*
C32Ab0.0807(6)0.3409(4)0.5994(3)0.0272(17)
H32Cb0.06640.28180.61970.033*
H32Db0.15180.33130.56980.033*
C33Ab−0.0630(8)0.3776(5)0.5723(3)0.040(2)
H33Db−0.12770.39250.60280.059*
H33Eb−0.10910.33080.54660.059*
H33Fb−0.04490.43340.55000.059*
C340.42692(16)0.66339(11)0.28591(6)0.0347(3)
H34A0.41090.60340.30480.042*
H34B0.47650.65100.25020.042*
C350.28000(19)0.70694(13)0.26948(8)0.0517(4)
H35A0.22140.66500.24410.077*
H35B0.29420.76510.24910.077*
H35C0.22930.71890.30450.077*
C360.61503(17)0.78699(10)0.29814(6)0.0351(3)
H36A0.62130.77080.25690.042*
H36B0.71470.78300.31720.042*
C370.56214(19)0.88604(11)0.30189(7)0.0428(4)
H37A0.46540.89170.28150.064*
H37B0.63060.92720.28400.064*
H37C0.55630.90310.34260.064*

  1. aOccupancy: 0.774(4), bOccupancy: 0.226(4).

Source of material

All solvents and starting materials are commercially available and used without further treatment. The title compound was prepared by a two-step reaction according to the literature [5]. Synthesis of the intermediate rhodamine B hydrazide. To a 50 mL flask-2-neck, rhodamine B (1 mmol, 479 mg) was dissolved in 20 mL ethanol to form a plum purple clear solution. 2.0 mL hydrazine hydrate (80%, excess) was then added dropwise under vigorous stirring at room temperature. And then, the stirred mixture was refluxed for 4 h, during which the solution color changed from dark purple to grass green and finally to light orange. After that, the mixture was cooled and distilled by reduced pressure to yield precipitate. The resulting precipitate was filtered, washed several times with water. Yield: ca. 75%. Synthesis of the title compound quinoxaline-2-carboxaldehyde rhodamine B hydrazone. Rhodamine B hydrazide powder (0.5 mmol, 230 mg) was dissolved in 15 mL absolute ethanol. An ethanol solution 15 mL containing quinoxaline-2-carboxaldehyde (0.5 mmol, 79 mg) was added to the above rhodamine B hydrazide solution. And then, the stirred mixture was refluxed for 6 h. The reaction solution was reddish brown clarified solution. Then the solvent was concentrated under reduced pressure to yield a yellow precipitate. The precipitate was filtered and washed several times with cold ethanol to obtain yellow powder. Yield: ca. 70%. The yellow powder (0.02 mmol, 11.92 mg) was dissolved in ethanol/dichloromethane (1:1) (15 mL) to give a clear yellow solution to evaporate at room temperature. After one weak, pale yellow cube crystals suitable for X-ray diffraction measurements appeared. Yield: ca. 70%.

Experimental details

The H atoms were added geometrically using riding models and refined isotropically.

Comment

Quinoxalines are well known fluorescent compounds known for high quantum yields and have attracted much attention due to their potential functions in molecular probes and in polymer fields [6], [7]. Quinoxalines are easy to prepare and numerous derivatives have been designed as biologically active materials [8]. Rhodamine B derivatives have attracted attention by virtue of their long-wavelength emission and availability [9], [10]. In this paper, we report a quinoxaline-2-carboxaldehyde rhodamine B hydrazone compound. The title compound is the potential fluorescent probe for certain metal ion.

The asymmetric unit contains a neutral molecule in a ring-closed form. The amide C=O bond distance is 1.2216(15) Å, indicative of the keto form. The dihedral angle between xanthene least-square plane and quinoxaline aroylhydrozone group is 88.6°. The thermal vibration of C32 and C33 atoms at the end of xanthene is larger, so they have been disordered treated. There are apparent π-π contacts between adjacent quinoxaline groups of the adjacent molecules. The quinoxaline groups of the adjacent molecules are parallel with the face-to-face distances of 3.305 Å. There are also π-π contacts between adjacent xanthene groups of the adjacent molecules. The face-to-face distances of parallel plane of adjacent molecules is 3.569 Å and 3.553 Å. The relatively short distances and the parallel xanthene planes indicate the presence of strong intermolecular π—π contacts. All geometric parameters are in the expected ranges [11], [12].

Funding source: Scientific and Technological Brainstorm Project of Henan Province

Award Identifier / Grant number: 192102310214

Funding source: Foundation of Henan Educational Committee

Award Identifier / Grant number: 19A520005

Award Identifier / Grant number: 19A360021

Funding statement: This work was supported by the Scientific and Technological Brainstorm Project of Henan Province (192102310214) and the Foundation of Henan Educational Committee (19A520005, 19A360021).

References

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Received: 2019-04-22
Accepted: 2019-06-20
Published Online: 2019-09-09
Published in Print: 2019-11-26

©2019 Jun-Ying Song et al., published by De Gruyter, Berlin/Boston

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

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  53. Crystal structure of poly[diaqua-bis(μ2-3-((1H-imidazol-1-yl)methyl)benzoato-κ2N:O)manganese(II)], C22H22MnN4O6
  54. Crystal structure of 9-(3-phenoxyphenyl)-3,4,6,7,9,10-hexahydroacridine-1,8(2H,5H)-dione, C25H23NO3
  55. The crystal structure of poly[(μ3-2,4,6-tris[4-(1H-imidazol-1-yl)phenyl]-1,3,5-triazine-k3N:N′:N′′)-(nitrato-k2O,O)-(nitrato-k1O)zinc(II)] - N,N-dimethylacetamide (1/2), C38H39N13O8Zn
  56. Crystal structure of poly[(μ7-4-(3,5-dicarboxylatophenoxy)phthalato)-(1,10-phenanthroline-κ2N,N′)dizinc(II)], C28H14N2O9Zn2
  57. The crystal structure of methyl 2-(benzylamino)-5-(benzyloxy)benzoate, C22H21NO3
  58. Crystal structure of (1,4,8,11-tetraazacyclotetradecane)palladium(II) tetracyanoplatinate(II), C14H24N8PdPt
  59. Crystal structure of (pyridine-2-carboxylato-κ2N,O)-[2-(2-pyridyl)phenyl-κ2N,C1]palladium(II), C17H12N2O2Pd
  60. Crystal structure of (cyclohexane-1,4-diammonium) 4-[(4-carboxylatophenyl)disulfanyl]benzoate dimethylsulphoxide hydrate (1/1/1/1), [C6H16N2]2+[C14H8O4S2]2−⋅C2H6OS⋅H2O
  61. Crystal structure of the 2:1 co-crystal 2-[(2-carboxyphenyl)disulfanyl]benzoic acid – 3-bromobenzoic acid, 2(C14H10O4S2)⋅C7H5BrO2
  62. Crystal structure of chlorido-dimethyl-(phenylpiperazine-1-carbodithioato-κ2S,S′)tin(IV), C13H19ClN2S2Sn
  63. Crystal structure of (N-n-butyl, N-methyl-dithiocarbamato-κ2 S,S′)-chlorido-dimethyl-tin(IV), C8H18ClNS2Sn
  64. Crystal structure of (2,2′-bipyridyl)bis(4-bromobenzyl)dibromidotin(IV), C24H20Br4N2Sn
  65. Crystal structure of (2,2′-bipyridyl)bis(4-chlorobenzyl)dichloridotin(IV), C24H20Cl4N2Sn
  66. Crystal structure of N-methyl-N-phenyl(methylsulfanyl)carbothioamide, C9H11NS2
  67. Crystal structure of 4-phenylpiperazin-1-ium (4-phenylpiperazin-1-yl)carbothioylsulfanide, [C10H15N2][C11H13N2S2]
  68. Crystal structure of catena-{di-aqua-sodium [n-butyl(methyl)carbamothioyl]sulfanide}n, [C6H16NNaO2S2]n
  69. Crystal structure of (2-([1,1-bis(hydroxymethyl)-2-oxyethyl]iminomethyl)-5-(n-decyl)phenolato)-dimethyl-tin(IV), C23H39NO5Sn
  70. Crystal structure of 4-chloro-N′-[(1E)-(3-ethoxy-2-hydroxyphenyl)methylidene]benzohydrazide – a Z′ = 3 structure, C16H15ClN2O3
https://doi.org/10.1515/ncrs-2019-0290
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Articles in the same Issue

  1. Frontmatter
  2. Crystal structure of [aqua[2,2′-(1,2-phenylene)bis(1H-imidazole-4-carboxylato-5-carboxy)-κ4N3,N3′,O4,O4′] zinc(II)] monohydrate, C16H10N4O9Zn⋅H2O
  3. Crystal structure of ethyl 3-(4-methoxyphenyl)-5-methylcarbamoyl-1H-pyrazole-4-carboxylate, C15H17N3O4
  4. 7-(4-Fluorobenzylidene)-3-(4-fluorophenyl)-N-phenyl-3,3a,4,5,6,7-hexahydro-2H-indazole-2-carbothioamide–dimethylformamide (2/1), C27H23F2N3S, 0.5(C3H7NO)
  5. Crystal structure of 4,4′-(hydrazonomethylene)diphenol dihydrate, C13H16N2O4
  6. Crystal structure of 4-methoxyphenyl-3-phenylpropiolate, C16H12O3
  7. Crystal Structure of tris(tetrakis{1-vinyl-1H-imidazole-κN}copper(II)) bis[tri-μ2-bromido-tetrabromido-bis(1-vinyl-1H-imidazole-κN)tetracopper(I)], C80H96N32Cu11Br14
  8. Crystal structure of (E)-2-(3,6-bis(diethylamino)-9H-xanthen-9-yl)-N′-(quinoxalin-2-ylmethylene)benzohydrazide, C37H36N6O2
  9. Crystal structure of 4-(1-phenylimidazo[1,5-a]pyridin-3-yl)benzoic acid (C20H14N2O2)
  10. Crystal structure of 3-fluoro-3-methyl-1-((2-nitrophenyl)sulfonyl)-5,5-diphenylpiperidine, C24H23FN2O4S
  11. Crystal structure of dimethyl 3,12-dibenzyl-6,10-diphenyl-3,12-diazapentacyclo [6.3.1.02.7.04.11.05.9]-dodecane-7,11-dicarboxylate — acetone (2/1), C40H38N2O2 ⋅ 0.5C3H6O
  12. Crystal structure of poly[(μ2-2-(1H-1,2,4-triazol-1-yl)benzoato-κ4O:O′:N:N′)silver(I)] monohydrate, C9H8AgO3N3
  13. Crystal structure of poly[(μ2-9H-carbazole-3,6-dicarboxylate-κ4O1,O2:O3,O4)(μ2-1,3-di(pyridin-4-yl)propane-κ2N:N′)cadmium(II)]monohydrate, C27H23N3O5Cd
  14. The synthesis and crystal structure of bis(2-(benzo[d]thiazol-2-yl)-5-methylbenzen-1-ido-κ2C,N)-(N,N′-diethyldithiocarbamato-κ2S,S′)iridium(III), C33H30N3S4Ir
  15. The crystal structure of 5-amino-1-(2,6-dichloro-4-(trifluoromethyl)phenyl)-4-(trifluoromethylsulfonyl)-1H-pyrazole-3-carboxamide, C12H6N4Cl2F6O3S
  16. Synthesis and crystal structure of poly[(μ2-nitrato-κ4O,O′:O′,O′′)-nitrato-κO-(μ2-1,4-bis((1H-imidazol-1-yl)methyl)benzene-κ2N:N′)cadmium(II)], C14H14N6O6Cd
  17. Crystal structure of ethyl (Z)-(4-oxo-4-phenylbut-2-en-2-yl)glycinate, C14H17NO3
  18. Halogen bonds in the crystal structure of 5-bromo-3,4′-bipyridine – 1,4-diiodotetrafluorobenzene (2/1), C26H14Br2F4I2N4
  19. Crystal structure of bis(2,2′-bipyridine-κ2N,N′)-tetrakis(μ2-3-(phenylsulfonamido)propanoato-κ2O:O′)-bis(3-(phenylsulfonamido)propanoato-κ2O,O′)digadolinium(III) – 2,2′-bipyridine (1/1), C84H84Gd2N12O24S6
  20. Crystal structure of poly[aqua(μ2-2-amino-1,4-benzenedisulfonato-κ2O:O′)bis(μ2-pyrazin-κ2N:N′)silver(I)], C14H16Ag2N5O8S2
  21. The crystal structure of 1,6-di-tert-butyl-1,1,3,3,4,4,6,6-octamethyl-2,2,5,5-tetrakis (trimethylsilyl)hexasilane, C28H78Si10
  22. Crystal structure of discandium triruthenium tetrasilicide, Sc2Ru3Si4
  23. Crystal structure of poly[(μ2-4-amino-1,5-naphthalenedisulfonato-κ4O,N:O′, N′)bis(μ2-hexamethylenetetramino-κ2N;N′)silver(I)], {C22H30Ag2N9O6S2}n
  24. Crystal structure of diaqua[5,5′-dicarboxy-2,2′-(propane-1,3-diyl)bis(1H-imidazole-4-carboxylato-κ4O,O′,N,N′)]zinc(II) dihydrate, C13H18N4O12Zn
  25. The crystal structure of poly [(μ3-N1,N4-bis(pyridin-3-yl)cyclohexane-1,4-dicarboxamide-κ3-O:N:N′)-(p-toluenesulfonato-κ2O,O′)silver(I)], C25H27Ag1N4O5S
  26. The crystal structure of 1,2-bis(3-bromophenoxy) ethane, C14H12Br2O2
  27. The crystal structure of 4-(pyren-1-yl)butyl-3-nitrobenzoate, C27H21NO4
  28. Crystal structure of bis[(2-(4-chlorophenyl)-5-methyl-1,3-dioxane-5-carboxylato-κ1O) (5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane-κ4N,N′,N′′,N′′′)]nickel(II), C40H60Cl2N4NiO8
  29. The crystal structure of 1,5-dinitro-2,3,4-trichlorobenzene, C6H1Cl3N2O4
  30. The crystal structure of the solid solution of 3,5-dinitropyrazole and 4-chlorine-3,5-dinitropyrazole, C3H1.24Cl0.76N4O4
  31. The cocrystal structure of 4-nitropyrazole — acetic acid (1/1), C5H7N3O4
  32. The crystal structure of propan-2-one O-(2,4,6-trinitrophenyl) oxime, C9H8N4O7
  33. The crystal structure of ethyl 2-(3-(2-ethoxy-2-oxoethyl)benzo[d] thiazol-2(3H)-ylidene)acetate, C15H17NO4S
  34. Crystal structure of (acetic acid-κ1O)-bis(μ2-2-chlorobenzoato-κ2O:O′)-(2-chlorobenzoato-κ1O)-(μ2-hydroxy-κ2O:O)-bis(1,10-phenanthroline-κ2N,N′)dimanganese(II) — methanol (1/1), C48H37Cl3Mn2N4O10
  35. Crystal structure of 3-methyl-2-phenyl-1,8-naphthyridine, C15H12N2
  36. Crystal structure of chlorido-(5-acetyl-2-(5-methylpyridin-2-yl)benzen-1-ido-κ2C,N)-pyridine-κN-palladium(II), C19H17ClN2OPd
  37. Crystal structure of (4-methyl-benzoato-κ2O,O′)-(5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane-κ4N,N′,N′′,N′′′)nickel(II) perchlorate monohydrate, C24H45ClN4NiO7
  38. Crystal structure of (1,4,7,10,13,16-hexaoxacyclooctadecane-κ6O6) 1,2,3,4,5-pentamethyl-cyclopenta-2,4-dien-1-yl(potassium, rubidium) — ammonia (1/2), [K0.3Rb0.7(18-crown-6)]Cp*⋅2 NH3, C22H45K0.3N2O6Rb0.7
  39. Crystal structure of (3E,5E)-1-((4-fluorophenyl)sulfonyl)-3,5-bis(3-nitrobenzylidene)piperidin-4-one — dichloromethane (2/1), C51H38Cl2F2N6O14S2
  40. Crystal structure of (E)-N′-((1,6-dihydropyren-1-yl)methylene)isonicotinohydrazide — methanol (1/1), C24H19N3O2
  41. Crystal structure of poly[aqua(μ2-2-amino-1,4-benzenedisulfonato-κ3N,O:O′)-(μ4-hexamethylenetetramino-κ4N:N′:N′′:N′′′)disilver(I)] monohydrate, C12H21Ag2N5O8S2
  42. Crystal structure of bis(acridin-10-ium) 2,5-dihydroxyterephthalate — 2,5-dihydroxyterephthalic acid (1/1), C21H15NO6
  43. The crystal structure of 1,12-diazaperylene, C18H10N2
  44. Crystal structure of 1-(5-(4-chlorophenyl)-3-(2-fluorophenyl)-4,5-dihydro-1H-pyrazol-1-yl)ethan-1-one, C17H14N2OFCl
  45. Crystal structure of (4aR,6aR,6bR,10S,12aR)-10-acetoxy-1,2,3,4, 4a,5,6,6a,6b,7,8,8a,9,10,11,12,12a, 12b,13,14b-icosahydro-2,2,4a,6b,9,9,12a-heptamethylpicene-6a-carboxylic acid, C32H50O4
  46. The crystal structure of tetrachlorido-bis{1,3-bis(2,6-diisopropylphenyl)-1H-3λ4-imidazol-2-yl}-(μ2-pyrimidine-κ2N:N′)dipalladium(IV) — dichloromethane (1/2), C60H80Cl8N6Pd2
  47. The crystal structure of (E)-4-(7-methoxy-2-oxo-2H-chromen-8-yl)-2-methylbut-2-en-1-yl 4-nitrobenzoate, C22H19NO7
  48. Crystal structure of 3-methyl-N-(pyrimidin-5-ylmethyl)pyridin-2-amine, C11H12N4
  49. The crystal structure of 2,5-dichloroterephthalic acid dihydrate, C8H8Cl2O6
  50. The crystal structure of 2,4,6-tris[4-(1H-imidazol-1-yl)phenyl]-1,3,5-triazine — dimethylformamide (1/1), C33H28N10O
  51. Crystal structure of N-(adamantan-1-yl)-5-(dimethylamino)naphthalene-1-sulfonamide, C22H28N2O2S
  52. Crystal structure of poly[diaqua-(μ4-4-(3,5-dicarboxy-κ1O-phenoxy)phthalato-κ3O:O′:O′)cadmium(II)], C16H12CdO11
  53. Crystal structure of poly[diaqua-bis(μ2-3-((1H-imidazol-1-yl)methyl)benzoato-κ2N:O)manganese(II)], C22H22MnN4O6
  54. Crystal structure of 9-(3-phenoxyphenyl)-3,4,6,7,9,10-hexahydroacridine-1,8(2H,5H)-dione, C25H23NO3
  55. The crystal structure of poly[(μ3-2,4,6-tris[4-(1H-imidazol-1-yl)phenyl]-1,3,5-triazine-k3N:N′:N′′)-(nitrato-k2O,O)-(nitrato-k1O)zinc(II)] - N,N-dimethylacetamide (1/2), C38H39N13O8Zn
  56. Crystal structure of poly[(μ7-4-(3,5-dicarboxylatophenoxy)phthalato)-(1,10-phenanthroline-κ2N,N′)dizinc(II)], C28H14N2O9Zn2
  57. The crystal structure of methyl 2-(benzylamino)-5-(benzyloxy)benzoate, C22H21NO3
  58. Crystal structure of (1,4,8,11-tetraazacyclotetradecane)palladium(II) tetracyanoplatinate(II), C14H24N8PdPt
  59. Crystal structure of (pyridine-2-carboxylato-κ2N,O)-[2-(2-pyridyl)phenyl-κ2N,C1]palladium(II), C17H12N2O2Pd
  60. Crystal structure of (cyclohexane-1,4-diammonium) 4-[(4-carboxylatophenyl)disulfanyl]benzoate dimethylsulphoxide hydrate (1/1/1/1), [C6H16N2]2+[C14H8O4S2]2−⋅C2H6OS⋅H2O
  61. Crystal structure of the 2:1 co-crystal 2-[(2-carboxyphenyl)disulfanyl]benzoic acid – 3-bromobenzoic acid, 2(C14H10O4S2)⋅C7H5BrO2
  62. Crystal structure of chlorido-dimethyl-(phenylpiperazine-1-carbodithioato-κ2S,S′)tin(IV), C13H19ClN2S2Sn
  63. Crystal structure of (N-n-butyl, N-methyl-dithiocarbamato-κ2 S,S′)-chlorido-dimethyl-tin(IV), C8H18ClNS2Sn
  64. Crystal structure of (2,2′-bipyridyl)bis(4-bromobenzyl)dibromidotin(IV), C24H20Br4N2Sn
  65. Crystal structure of (2,2′-bipyridyl)bis(4-chlorobenzyl)dichloridotin(IV), C24H20Cl4N2Sn
  66. Crystal structure of N-methyl-N-phenyl(methylsulfanyl)carbothioamide, C9H11NS2
  67. Crystal structure of 4-phenylpiperazin-1-ium (4-phenylpiperazin-1-yl)carbothioylsulfanide, [C10H15N2][C11H13N2S2]
  68. Crystal structure of catena-{di-aqua-sodium [n-butyl(methyl)carbamothioyl]sulfanide}n, [C6H16NNaO2S2]n
  69. Crystal structure of (2-([1,1-bis(hydroxymethyl)-2-oxyethyl]iminomethyl)-5-(n-decyl)phenolato)-dimethyl-tin(IV), C23H39NO5Sn
  70. Crystal structure of 4-chloro-N′-[(1E)-(3-ethoxy-2-hydroxyphenyl)methylidene]benzohydrazide – a Z′ = 3 structure, C16H15ClN2O3
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