Home Crystal structure of catena-poly[(μ2-pentane-1,5-dicarboxylato-κ2O:O′)-(μ2-2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazole-κ2N:N′)zinc(II)] sesquihydrate, C17H21N4O5.5Zn
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Crystal structure of catena-poly[(μ2-pentane-1,5-dicarboxylato-κ2O:O′)-(μ2-2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazole-κ2N:N′)zinc(II)] sesquihydrate, C17H21N4O5.5Zn

  • Yan-Ju Liu , Na Wang , Ya Liu , Fang-Rong Cheng EMAIL logo and Xiang-Ru Meng
Published/Copyright: September 29, 2018
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Zeitschrift für Kristallographie - New Crystal Structures
From the journal Zeitschrift für Kristallographie - New Crystal Structures Volume 234 Issue 1

Abstract

C17H21N4O5.5Zn, monoclinic, P21/c (no. 14), a = 9.4009(12) Å, b = 13.8160(18) Å, c = 15.1299(19) Å, β = 95.507(3)°, V = 1956.0(4) Å3, Z = 4, Rgt(F) = 0.0590, wRref(F2) = 0.1495, T = 298(2) K.

CCDC no.: 1863096

The crystal structure is shown in the figure. The heteroatoms of the asymmetric unit are labelled and hydrogen atoms of the coordination polymer are omitted for clarity. Tables 1 and 2 contain details on crystal structure and measurement conditions and a list of the atoms including atomic coordinates and displacement parameters.

Table 1:

Data collection and handling.

Crystal:Light yellow block
Size:0.20 × 0.18 × 0.14 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:1.29 mm−1
Diffractometer, scan mode:Bruker D8 VENTURE, φ and ω-scans
θmax, completeness:25.5°, >99%
N(hkl)measured, N(hkl)unique, Rint:29097, 3640, 0.058
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 2977
N(param)refined:249
Programs:Bruker programs [1], SHELX [2, 3]
Table 2:

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

AtomxyzUiso*/Ueq
Zn10.95762(6)0.31152(4)0.33876(4)0.0485(2)
N10.9320(4)0.4510(3)0.3719(2)0.0472(9)
N20.9897(4)0.5992(3)0.4123(2)0.0412(8)
N30.9953(4)0.7809(3)0.5590(3)0.0482(9)
N40.9317(4)0.8307(3)0.4223(3)0.0526(10)
H4A0.92600.83070.36520.063*
O10.6886(4)0.2847(3)0.3625(3)0.0673(11)
O20.8157(3)0.2504(3)0.2531(2)0.0667(11)
O30.2514(4)0.3405(4)0.3833(3)0.0813(13)
O40.1178(3)0.3095(3)0.2596(2)0.0530(9)
O50.4999(6)0.6651(6)0.5056(4)0.148(3)
H1W0.43970.68810.53840.222*
H2W0.58110.66050.53530.222*
O6c0.4070(13)0.5206(7)0.3968(8)0.120(4)
H3Wc0.36180.47010.37840.180*
H4Wc0.38330.55360.44040.180*
C10.6998(5)0.2468(4)0.2899(3)0.0534(12)
C20.5794(5)0.1908(4)0.2413(4)0.0603(14)
H2A0.60320.12250.24450.072*
H2B0.57200.20950.17930.072*
C30.4344(5)0.2049(4)0.2760(4)0.0580(14)
H3A0.44380.19550.33980.070*
H3B0.36870.15630.24990.070*
C40.3727(5)0.3052(4)0.2547(4)0.0595(14)
H4B0.34740.31110.19120.071*
H4C0.44360.35420.27250.071*
C50.2405(5)0.3205(4)0.3039(3)0.0531(12)
C61.0386(5)0.5132(4)0.3882(3)0.0468(11)
H6A1.13430.49900.38360.056*
C70.8090(5)0.5008(4)0.3865(3)0.0511(12)
H7A0.71700.47530.37980.061*
C80.8434(5)0.5922(4)0.4121(3)0.0510(12)
H8A0.78090.64060.42660.061*
C91.0829(5)0.6829(4)0.4361(3)0.0476(11)
H9A1.12470.70530.38360.057*
H9B1.16010.66280.47930.057*
C101.0036(5)0.7642(4)0.4736(3)0.0426(10)
C11a0.8722(15)0.8948(10)0.4688(7)0.066(3)
C12a0.7879(16)0.9767(10)0.4526(8)0.081(4)
H12Aa0.76400.99750.39460.097*
C13a0.7394(15)1.0276(8)0.5231(12)0.097(6)
H13Aa0.68301.08240.51220.117*
C14a0.7751(14)0.9966(9)0.6097(10)0.099(6)
C15a0.8594(14)0.9146(10)0.6259(7)0.098(5)
H15Aa0.88330.89380.68390.118*
C16a0.9080(13)0.8638(8)0.5555(7)0.056(3)
C17b0.685(3)1.057(2)0.6547(17)0.103(9)
H17A0.64741.10750.61540.154*
H17Bb0.60751.01970.67380.154*
H17Cb0.73851.08540.70540.154*
C11′b0.874(3)0.8937(16)0.4891(10)0.025(4)
C12′b0.786(3)0.9741(17)0.4763(9)0.037(5)
H12Bb0.75360.99360.41910.044*
C13′b0.747(2)1.0255(14)0.5490(12)0.030(4)
C14′b0.795(2)0.9964(14)0.6346(10)0.041(5)
H14Ab0.76861.03070.68320.049*
C15′b0.8835(18)0.9159(14)0.6474(9)0.021(3)
H15Bb0.91610.89640.70460.026*
C16′b0.923(2)0.8646(13)0.5746(12)0.022(4)
C17′a0.6452(10)1.1138(6)0.5299(7)0.077(3)
H17Da0.62451.12150.46690.115*
H17Ea0.55791.10310.55650.115*
H17Fa0.69081.17120.55450.115*

  1. Occupancies: a = 0.698(11), b = 0.302(11), c = 0.5.

Source of material

All reagents were purchased from commercial sources and used without further purification. A mixture of Zn(acetate)2 (0.05 mmol), pentane-1,5-dicarboxylic acid (H2glu, 0.05 mmol), 2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazol (immb, 0.05 mmol), methanol (1 mL) and distilled water (4 mL) was sealed in a 25 mL Teflon-lined stainless steel container and heated at 393 K for 72 h. After the mixture cooled to room temperature at a rate of 5 K h−1, light yellow crystals of the title compound were obtained (yield 64%, based on Zn).

Experimental details

The methylbenzene moiety was modeled by splitting it into two parts (C11—C17 and C11′—C117′), the site-occupation factors of which refined in a ratio of 0.689(11):0.302(11). Only one orientation of the disordered methylbenzene group is shown in the Figure 1. Hydrogen atoms on carbon and nitrogen atoms were positioned geometrically and refined as riding atoms, with C—H = 0.93 Å (aromatic) or 0.96 Å (CH3) or 0.97 Å (CH2), and N—H = 0.86 Å. Water H atoms were found according to the residual electron-density peaks around each water O atom and the directions of hydrogen bonds, and were then locked in position and included with O—H = 0.85 Å. Hydrogen atoms were refined with Uiso(H) = 1.5Ueq(C,O) for methyl H atoms and water H atoms and 1.2Ueq(C,N) otherwise.

Figure 1: The structure of the title compound.
Figure 1:

The structure of the title compound.

Discussion

Careful choice of the organic ligands is one of the most important parameters in the rational design and synthesis of coordination polymers. Multidentate N-heterocyclic compounds containing imidazole or benzimidazole groups, like 2-[(1H-imidazol-1-yl)methyl]-1H-benzimidazole (imb) and 2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazol (immb), have been used extensively as ligands for the construction of coordination polymers [4, 5] . Aliphatic dicarboxylic acids, like hexane-1,6-dicarboxylic acid (H2adi), pentane-1,5-dicarboxylic acid (H2glu) and butane-1,4-dicarboxylic acid (H2suc), have also been widely used in the preparation of coordination polymers since the corresponding double deprotonated anions have two carboxylate groups and have the great richness and variation of coordination modes which can generate unforeseen structure patterns and frameworks [6], [7], [8]. Meanwhile, the combination of N-heterocyclic and polycarboxylate ligands is an effective approach for the construction of numerous polymers based on these ligands [9], [10], [11]. In this work, by employing multidentate N-donor immb and O-donor glu2− as mixed ligands to react with Zn(acetate)2, we have successfully obtained a new coordination polymer {[Zn(glu)(immb)] ⋅ 1 ⋅ 5H2O}n.

The asymmetric unit of the title structure consists of one Zn(II) ion, one 2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazol (immb) ligand, one pentane-1,5-dicarboxylate (glu2−) anion, and one and a half lattice water molecules. The Zn1 ion is located in an irregular ZnO3N2 coordination environment and is coordinated by three O atoms from two symmetry-related glu2− anionic ligands and two N atoms from two symmetry-related immb ligands. The Zn–N bond lengths are 2.012(4) and 2.021(4) Å, while the Zn–O bond lengths are in the range of 1.960(3)–2.615(3) Å, all of which are close to those in a literature known Zn(II) polymer [12]. Two Zn(II) ions are linked by two immb ligands into binuclear [Zn2(immb)2] units, and glu2− anions connect the binuclear units to generate one-dimensional chains (cf. the Figure 1) that run along the a axis. There are four kinds of intra-chain O—H⋯O hydrogen bonds. In addition, one-dimensional chains are connected by N4—H⋯O4′ (′ = −x + 1, y + 1/2, −z + 1/2) hydrogen bonds forming a three-dimensional supramolecular architecture in the solid state.

Acknowledgements

This study was supported by Science and Technology Innovation Talents of Henan University of Chinese Medicine (2014XCXRC04) and Henan University of Chinese Medicine, Provincial Scientific Research Business (2014KYYWF-QN03).

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Received: 2018-06-28
Accepted: 2018-08-21
Published Online: 2018-09-29
Published in Print: 2018-12-19

©2018 Yan-Ju Liu et al., published by De Gruyter, Berlin/Boston

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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  53. Crystal structure of (E)-3′,6′-bis(ethylamino)-2′,7′-dimethyl-2-((pyridin-2-ylmethylene)amino)spiro[isoindoline-1,9′-xanthen]-3-one, C32H31N5O2
  54. The crystal structure of 2-(4-fluorophenyl)-1,3,4-oxadiazole, C8H5FN2O
  55. Crystal structure of (2,2′-bipyridine-κ2N,N′)bis(tri(p-tolyl)phosphine-κP)copper(I) tetrafluoroborate – 4,4′-bipyridine (2/1), C57H54BCuF4N3P2
  56. The crystal structure of 2,6-dimethyl-3,5-dinitrocyclohexa-2,5-diene-1,4-dione, C8H6N2O6
  57. The crystal structure of 2,3-dimethyl-1,4-dinitrobenzene – a Z′ = 4 structure, C8H8N2O4
  58. Crystal structure of [(1,2-η)-1,2,3,4,5-pentamethyl-cyclopenta-2,4-dien-1-yl] (1,4,10,13-tetraoxa-7,16-diazacyclooctadecane-κ6N2,O4) rubidium (I), [Rb(diaza-18-crown-6)]Cp*, C22H41N2O4Rb
  59. Crystal structure of 2-(4-fluorophenyl)-N-phenyl-2-(phenylamino)ethanesulfonamide – toluene (1/0.5), C23.5H23FN2O2S
  60. Crystal structure of pyrene-4-aldehyde, C17H10O
  61. Crystal structure of 2-(furan-2-yl)-5-methyl-1,3-dioxane-5-carboxylic acid, C10H12O5
  62. Crystal structure of 2-(4-chlorophenyl)-3-phenyl-1,8-naphthyridine, C20H13N2Cl
  63. Crystal structure and photochromism of 1-(2-ethyl-5-formylthiophen-3yl)-2-(2-cyano-1,5-dimethyl-4-pyrrl)-3,3,4,4,5,5-hexafluorocyclopent-1-ene, C19H14F6N2OS
  64. Crystal structure of 2-(4-bromophenyl)-1,3-dimethyl-1H-perimidin-3-ium iodide, C19H16BrIN2
  65. Crystal structure of 2-(4-(dimethylamino)phenyl)-10-methylacridin-9(10H)-one, C22H20N2O
  66. Crystal structure of 4-(acetoxymethyl)-6-(3-acetyl-3-(4-fluorophenyl)thioureido)cyclohex-4-ene-1,2,3-triyl triacetate, C24H26FN2O9S
https://doi.org/10.1515/ncrs-2018-0181
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Articles in the same Issue

  1. Cover and Frontmatter
  2. Crystal structure of bis(6,6′-((ethane-1,2-diylbis(azanylylidene))bis(methanylylidene))bis(2,4-diiodophenolato)-κ4N,N′,O,O′)cer(IV), C32H20CeI8N4O4
  3. Crystal structure of (6,6′-((ethane-1,2-diylbis(azanylylidene))bis(methanylylidene))bis(2-chlorophenolato-κ2N,O))copper(II), C16H12Cl2CuN2O2
  4. Crystal structure of poly[aqua-(μ3-4-(pyridin-4-yl)isophthalato-κ4O,O′:O′′:O′′′)-(μ2-5-carboxy-2-(pyridin-4-yl)benzoato-κ2O:O′)samarium(III)], C26H18N2O9Sm
  5. Crystal structure of 1-{4-[(2-hydroxy-5-nitrobenzylidene)amino]phenyl}ethanone O-methyl oxime, C16H15N3O4
  6. Synthesis and crystal structure of bis(μ2-acetato-κ2O:O′)-bis(μ2-1-(8-(2-oxidophenyl)-3,6-dioxa-2,7-diazaocta-1,7-dien-1-yl)naphthalen-2-olato-κ6O:O,N,N′,O′:O′)trizinc(II), C44H38Zn3N4O12
  7. Synthesis and crystal structure of bis(μ2-acetato-κ2O:O′)–bis(μ2–(8-(2-oxidophenyl)-3,6-dioxa-2,7-diazaocta-1,7-dien-1-yl)naphthalen-2-olato-κ6O:O,N,N′,O′:O′)tricobalt(II), C44H38Co3N4O12
  8. Crystal structure of poly[aqua(μ4-2,2′,2′′-nitrilotriacetato-κ6O1,O3,O5:O2:O4:O6)-yttrium(III)], C6H8NO7Y
  9. Crystal structure of catena-poly[bromido-(μ2-pyrazine-2-carboxylato-κ3N:N′,O)copper(II)], C10H6N4Cu2O4Br
  10. Crystal structure of poly[dodekais(μ2-2,6-difluorobenzoato-κ2O:O′)-bis((μ3-hexamethylenetetramine-κ3N:N′:N′′)hexacopper(II)], C48H30N4O12F12Cu3
  11. Crystal structure of methyl 4-(4-hydroxy-3-nitrophenyl)-2-methyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C18H18N2O6
  12. Crystal structure of N-phenyl-2-(propan-2-ylidene)hydrazine-1-carbothioamide, C10H13N3S
  13. Crystal structure of sodium caesium zinc phosphate, NaCsZnP2O7
  14. Crystal structure of methyl 4-(4-isopropylphenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydro-quinoline-3-carboxylate, C23H29NO3
  15. Crystal structure of catena-poly[bis(μ2-1,3-di(4H-1,2,4-triazol-4-yl)benzene-κ2N:N′)-bis(thiocyanato-κ1N)cobalt(II), C22H16CoN14S2
  16. Crystal structure of catena-poly[(μ2-2,5-di(pyridin-3-yl)-1,3,4-thiadiazole-κ2N:N′)-bis(2,5-di(pyridin-3-yl)-1,3,4-thiadiazole-κ1N)-bis(thiocyanato-κ1N)cobalt(II)], C38H24CoN14S5
  17. Crystal structure of bis(2,5-di(pyridin-2-yl)-1,3,4-thiadiazole-κ2N,N′)-bis(thiocyanato-κ1N)cobalt(II), C26H16CoN10S4
  18. Crystal structure of (bis((1H-benzo[d]imidazol2-yl)methyl)amine-κ3N,N′,N′′)-(pyridine-2,6-dicarboxylato-κ3N,O,O′)zinc(II) — methanol — water (1/2/1), C25H28N6O7Zn
  19. Crystal structure of catena-poly[triaqua-(μ2-5-methoxy-isophthalato-κ2O:O′)copper(II)], C9H12CuO8
  20. Structure and photochromism of 1-[2-methyl-5-phenyl-3-thienyl]-2-[2-methyl-5-(4-chlorophenyl)-3-thienyl]3,3,4,4,5,5-hexafluorocyclopent-1-ene, C27H16ClF6S2
  21. Crystal structure of methyl 4-(3-phenoxyphenyl)-2,7,7-trimethyl-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C26H27NO4
  22. Crystal structure of poly[diaqua-di-μ2-hydroxido-(μ4-3,4,5,6-tetrafluoro-1,2-phthalato-κ4O:O′:O′′:O′′′)-(μ4-3,4,5,6-tetrafluoro-1,2-phthalato-κ5O,O:O′:O′′:O′′′)disamarium(III)] – bipyridine (2/1), C21H11NF16O12Sm2
  23. Crystal structural of diethyl 4-(3,5-dibromo-4-hydroxyphenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate, C19H21Br2NO5
  24. Crystal structure of catena-poly[tetraaqua(μ2-4-(1H-imidazol-1-yl)pyridine-κ2N:N′))zinc(II)] thiophene-2,5-dicarboxylate, C14H17N3O8ZnS
  25. Crystal structure of (20S)-20-(dimethylamino)-3-(tigloylamino)-5α-pregn-2,16-dien-4-one, C28H42N2O2
  26. Crystal structure of rac-trans-N,N′-bis(3,5-diiodosalicylidene)-1,2-cyclohexanediamine, C20H18I4N2O2
  27. Crystal structure of 2-bromo-7-(4-(dimethylamino)phenyl)-10-methylacridin-9 (10H)-one, C22H19BrN2O
  28. Crystal structure of catena-poly[(μ2-pentane-1,5-dicarboxylato-κ2O:O′)-(μ2-2-[(1H-imidazol-1-yl)methyl]-6-methyl-1H-benzimidazole-κ2N:N′)zinc(II)] sesquihydrate, C17H21N4O5.5Zn
  29. Crystal structure of ethyl 2-amino-4-(3,4-difluorophenyl)-5-oxo-4H,5H-pyrano[3,2-c] chromene-3-carboxylate, C21H15F2NO5
  30. Crystal structure of 9-(5-methylthiophen-2-yl)-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione, C18H18O3S
  31. Crystal structure of [5,5′-((propane-1,3-diylbis(azanylylidene))bis(ethan-1-yl-2-ylidene))bis(3-(ethoxycarbonyl)-2,4-dimethylpyrrol-1-ido)-κ4N,N′,N′′,N′′′]nickel(II), C23H30N4O4Ni
  32. Crystal structure of (Z)-2-(2-(1,3-dioxo-1-(phenylamino)butan-2-ylidene)hydrazineyl) terephthalic acid-dimethylsulfoxide (1/1), C18H15N3O6 ⋅ C2H6OS
  33. Crystal structure of (2E,4Z)-dimethyl 4-((phenylamino)methylene)pent-2-enedioate, C14H15N1O4
  34. Crystal structure of (2Z,2′Z)-1,1′-(pyridine-2,6-diyl) bis(3-hydroxy-3-phenylprop-2-en-1-one), C23H17NO4
  35. Crystal structure of ethyl 2-amino-4-(3-bromophenyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carboxylate, C21H16BrNO5
  36. Crystal structure of bis(μ2-3,5-dichloro-2-oxidobenzoato-κ4O,O′:O′,O′′)-hexakis(μ2-pivalato-κ2O:O′)-bis(pivalato-κ2O,O′)-tetrakis(1,10-phenanthroline-κ2N,N′)tetragadolinium(III), C102H108Cl4Gd4N8O22
  37. Crystal structure of catena-poly[aqua-bis(formato-κ1O)-(μ2-1,1′-(oxybis(1,4-phenylene))-bis(1H-1,2,4-triazole)-κ2N:N′)copper(II)]hydrate, C18H16CuN6O6
  38. Crystal structure of 5-bromo-2-(naphthalen-6-yl)pyridine, C15H10BrN
  39. Crystal structure of N-(4-methoxybenzyl)pyridazin-3-amine- a rare Z′ = 4 structure, C12H13N3O
  40. Crystal structure of bis(perchlorato-κ1O)-bis(3,4,5-trimethoxy-N-(pyridin-2-yl)benzamide-κ2N,O)copper(II), C32H30Cl2CuN4O16
  41. Crystal structure of methyl 4-methyl-2,5-di(pyridin-4-yl)-1H-pyrrole-3-carboxylate monohydrate C17H15N3O2⋅H2O
  42. Crystal structure of dimethyl 5-(10-(methoxycarbonyl)anthracen-9-yl) isophthalate,C26H20O6
  43. Crystal structure of tert-butyl (R)-(1-(benzylamino)-3-methoxy-1-oxopropan-2-yl)carbamate, C16H24N2O4
  44. Crystal structure of aqua-bis(1,5-dimethyl-2-phenyl-4-(((E)-4-pyridylmethylene)amino)pyrazolidin-3-one-κN)-(nitrato-κO)-(nitrato-κ2O,O′)zinc(II), C34H34N10O9Zn
  45. Crystal structure of catena-poly[dichlorido-(μ2-1,5-dimethyl-2-phenyl-4-((pyridin-4-ylmethylene)amino)-1,2-dihydro-3H-pyrazol-3-one-κ2N:O)cobalt(II)] – methanol (1/1), C18H20Cl2CoN4O2
  46. Crystal structure of poly[diaqua-bis(μ2-1-(4-(1H-imidazol-1-yl)benzyl)-1H-1,2,4-triazole-κ2N:N′)manganese(II)]bis(2-carboxybenzoate) dihydrate, MnC40H40N10O12
  47. The crystal structure of 4-((3,4-dichlorobenzylidene)amino)-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one, C18H15Cl2N3O
  48. Crystal structure of bis(2-methoxy-6-((2-(pyrimidin-2-yl)hydrazono)methyl)phenolato-κ3N,N′,O)iron(III) perchlorate, C24H22N8O8ClFe
  49. The crystal structure of 2-[4-hydroxy-3-methoxyphenyl]-4,4,5,5-tetramethylimidazoline-3-oxide-1-oxyl, C14H19N2O4
  50. Crystal structure of diaqua-bis(3,3-dimethylacrylato-κ2O,O′)zinc(II), C10H18ZnO6
  51. Crystal structure of dichloro-tetrakis[(E)-1-(4-chlorophenyl)-4,4-dimethyl-2-(1H-1,2,4-triazol-1-yl)pent-1-en-3-ol-κN]cadmium (II), C60H74CdCl6N12O4
  52. Crystal structure of (20R)-20,25-epoxy-dammaran-3,12-dione, C30H48O3
  53. Crystal structure of (E)-3′,6′-bis(ethylamino)-2′,7′-dimethyl-2-((pyridin-2-ylmethylene)amino)spiro[isoindoline-1,9′-xanthen]-3-one, C32H31N5O2
  54. The crystal structure of 2-(4-fluorophenyl)-1,3,4-oxadiazole, C8H5FN2O
  55. Crystal structure of (2,2′-bipyridine-κ2N,N′)bis(tri(p-tolyl)phosphine-κP)copper(I) tetrafluoroborate – 4,4′-bipyridine (2/1), C57H54BCuF4N3P2
  56. The crystal structure of 2,6-dimethyl-3,5-dinitrocyclohexa-2,5-diene-1,4-dione, C8H6N2O6
  57. The crystal structure of 2,3-dimethyl-1,4-dinitrobenzene – a Z′ = 4 structure, C8H8N2O4
  58. Crystal structure of [(1,2-η)-1,2,3,4,5-pentamethyl-cyclopenta-2,4-dien-1-yl] (1,4,10,13-tetraoxa-7,16-diazacyclooctadecane-κ6N2,O4) rubidium (I), [Rb(diaza-18-crown-6)]Cp*, C22H41N2O4Rb
  59. Crystal structure of 2-(4-fluorophenyl)-N-phenyl-2-(phenylamino)ethanesulfonamide – toluene (1/0.5), C23.5H23FN2O2S
  60. Crystal structure of pyrene-4-aldehyde, C17H10O
  61. Crystal structure of 2-(furan-2-yl)-5-methyl-1,3-dioxane-5-carboxylic acid, C10H12O5
  62. Crystal structure of 2-(4-chlorophenyl)-3-phenyl-1,8-naphthyridine, C20H13N2Cl
  63. Crystal structure and photochromism of 1-(2-ethyl-5-formylthiophen-3yl)-2-(2-cyano-1,5-dimethyl-4-pyrrl)-3,3,4,4,5,5-hexafluorocyclopent-1-ene, C19H14F6N2OS
  64. Crystal structure of 2-(4-bromophenyl)-1,3-dimethyl-1H-perimidin-3-ium iodide, C19H16BrIN2
  65. Crystal structure of 2-(4-(dimethylamino)phenyl)-10-methylacridin-9(10H)-one, C22H20N2O
  66. Crystal structure of 4-(acetoxymethyl)-6-(3-acetyl-3-(4-fluorophenyl)thioureido)cyclohex-4-ene-1,2,3-triyl triacetate, C24H26FN2O9S
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