Home Crystal structure of dichlorido-bis(4-methylphenyl-κC)-bis(triphenylarsine oxide-κO)tin(IV), C50H44As2Cl2O2Sn
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Crystal structure of dichlorido-bis(4-methylphenyl-κC)-bis(triphenylarsine oxide-κO)tin(IV), C50H44As2Cl2O2Sn

  • Kong Mun Lo , See Mun Lee and Edward R.T. Tiekink ORCID logo EMAIL logo
Published/Copyright: October 9, 2019
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Zeitschrift für Kristallographie - New Crystal Structures
From the journal Zeitschrift für Kristallographie - New Crystal Structures Volume 235 Issue 1

Abstract

C50H44As2Cl2O2Sn, monoclinic, P21/n (no. 14), a = 10.84633(6) Å, b = 14.61376(9) Å, c = 13.53951(8) Å, β = 91.5073(6)°, V = 2145.35(2) Å3, Z = 2, Rgt(F) = 0.0237, wRref(F2) = 0.0642, T = 100(2) K.

CCDC no.: 1953497

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:Colourless prism
Size:0.12 × 0.08 × 0.05 mm
Wavelength:Cu Kα radiation (1.54184 Å)
μ:7.91 mm−1
Diffractometer, scan mode:XtaLAB Synergy, ω
θmax, completeness:75.3°, >99%
N(hkl)measured, N(hkl)unique, Rint:53250, 4435, 0.046
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 4242
N(param)refined:260
Programs:CrysAlisPRO [1], SHELX [2], [3], WinGX/ORTEP [4]
Table 2:

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

AtomxyzUiso*/Ueq
Sn0.5000000.5000000.5000000.01384(6)
As10.66729(2)0.43682(2)0.27777(2)0.01415(7)
Cl10.67033(4)0.46520(3)0.62790(4)0.02160(11)
O10.63487(13)0.48457(10)0.38594(11)0.0183(3)
C10.54081(18)0.64306(13)0.50834(14)0.0164(4)
C20.66148(18)0.67527(14)0.51559(15)0.0190(4)
H20.7278510.6343440.5048850.023*
C30.6866(2)0.76639(15)0.53827(15)0.0221(4)
H30.7697320.7867610.5425200.027*
C40.5912(2)0.82832(14)0.55485(15)0.0226(4)
C50.4703(2)0.79716(14)0.54207(16)0.0223(4)
H50.4038900.8387880.5492820.027*
C60.44535(19)0.70638(14)0.51899(15)0.0195(4)
H60.3621890.6869550.5102980.023*
C70.6166(3)0.92526(15)0.58733(19)0.0315(5)
H7A0.6986200.9286300.6193220.047*
H7B0.5542820.9444330.6341440.047*
H7C0.6135810.9657730.5296340.047*
C80.84044(17)0.41162(13)0.28661(14)0.0157(4)
C90.90786(18)0.38482(14)0.20524(15)0.0191(4)
H90.8674940.3749310.1430360.023*
C101.03469(19)0.37267(15)0.21592(16)0.0216(4)
H101.0812840.3535470.1611770.026*
C111.09292(18)0.38855(14)0.30668(17)0.0220(4)
H111.1798280.3816320.3133950.026*
C121.02569(19)0.41440(14)0.38773(16)0.0216(4)
H121.0665920.4246130.4496510.026*
C130.89875(18)0.42541(13)0.37871(15)0.0179(4)
H130.8521580.4420900.4343630.022*
C140.57945(18)0.32766(14)0.24017(14)0.0171(4)
C150.45057(18)0.32831(14)0.23835(15)0.0190(4)
H150.4067280.3816780.2567310.023*
C160.38777(19)0.24981(16)0.20929(15)0.0226(4)
H160.3001830.2489530.2090120.027*
C170.4519(2)0.17227(15)0.18053(15)0.0236(4)
H170.4080650.1191490.1595820.028*
C180.5798(2)0.17235(15)0.18236(16)0.0242(4)
H180.6234050.1192210.1628410.029*
C190.64437(19)0.24993(14)0.21268(16)0.0212(4)
H190.7319830.2499620.2146490.025*
C200.63327(18)0.52586(15)0.17751(15)0.0184(4)
C210.5851(2)0.60954(15)0.20567(17)0.0249(4)
H210.5700510.6219670.2731530.030*
C220.5593(2)0.67492(16)0.13349(18)0.0311(5)
H220.5254010.7322210.1517200.037*
C230.5826(2)0.65733(17)0.03550(18)0.0311(5)
H230.5659150.702814−0.0131710.037*
C240.6303(2)0.57329(19)0.00812(18)0.0341(5)
H240.6464140.561273−0.0592790.041*
C250.6545(2)0.50675(16)0.07909(18)0.0276(5)
H250.6854490.4486130.0604360.033*

Source of material

All chemicals and solvents were used as purchased without purification. The melting point was determined using a Mel-temp II digital melting point apparatus and was uncorrected. The IR spectrum was obtained on a Bruker Vertex 70v FTIR Spectrometer from 4000 to 400 cm−1.

Di(4-methylphenyl)tin dichloride was prepared from the comproportionation reaction of tetra(4-methylphenyl)tin using different stoichiometric amounts of stannic chloride [5]. Di(4-methylphenyl)tin dichloride (0.41 g, 1 mmol) and triphenylarsine oxide (Sigma Aldrich; 0.64 g, 2 mmol) were dissolved in ethanol (50 mL) and refluxed for 1 h. After filtration, the filtrate was evaporated slowly until colourless crystals were formed. The crystals were filtered, washed with a minimum amount of n-hexane and air-dried. Yield: 0.25 g (25%). M.pt: 479–481 K. IR (cm−1) 1085 (m) ν(C—O), 996 (m) ν(As—O), 478 (w) ν(Sn—O).

Experimental details

The C-bound H atoms were geometrically placed (C—H = 0.95–0.98 Å) and refined as riding with Uiso(H) = 1.2–1.5Ueq(C).

Comment

Despite the first crystal structure determination of a triorganoarsine oxide adduct of an organotin halide species being reported in 1983, i.e. binuclear (Ph3SnCl)O=As(Ph2)CH2CH2As(Ph2)=O(Ph3SnCl) [6], with five-coordinate tin centres, there have been comparatively few subsequent studies, especially compared to analogous triorganophosphine oxide adducts. While a one-dimensional coordination polymer was observed in the crystal of {[(n-Bu)2SnCl2]O=As(Ph2)CH2CH2As(Ph2)=O[(n-Bu)2SnCl2]}n, with hexa-coordinate tin centres [7], mononuclear, five-coordinate species are evident in the three remaining crystal structures, as exemplified in the structure of (4-ClC6H4)2SnCl2(O=AsPh3) [8]. Herein, the crystal and molecular structures of a hexa-coordinate adduct of di(4-methylphenyl)tin dichloride with two molecules of triphenylarsine oxide, (4-MePh)2SnCl2(O=AsPh3)2, (I), are described.

The molecular structure of (I) is shown in the figure (70% displacement ellipsoids and unlabelled atoms are related by the symmetry operation (i) 1 − x, 1 − y, 1 − z). The tin atom is located on a crystallographic centre of inversion and is coordinated by two chlorido ligands, two ipso-carbon atoms of the 4-methylphenyl substituents and two oxide-oxygen atoms from two O=AsPh3 ligands (see the figure). The resulting C2Cl2O2 donor set has all like-atoms trans and defines an octahedral geometry. The Sn—Cl1 [2.5500(4) Å], Sn—O1 [2.1667(14) Å] and As—O1 [1.6681(14) Å] bond lengths may be compared with the bond lengths in five-coordinate Ph3SnCl(O=AsPh3) [9]. Here [9], two independent molecules comprise the asymmetric unit. Even allowing for the increase in coordination number in (I), compared with Ph3SnCl(O=AsPh3) [9], the Sn—Cl bond lengths [2.613(2) and 2.634(2) Å] in the latter are elongated with respect to (I), as are the Sn—O bonds [2.260(4) and 2.283(4) Å]. These results are directly related to substituting an electronegative chlorido ligand in (I) with another organic substituent (phenyl), which reduces the Lewis acidity of the tin atom. The As—O bonds [1.6681(14) Å cf. 1.663(4) and 1.672(4) Å] in the two structures are similar. Within the molecule, two phenyl rings, tin- and arsenic-bound, align so as to form an intramolecular π⋯π interaction. Thus, the inter-centroid Cg(C1—C6)⋯Cg(C14—C19)i separation = 3.6547(12) Å and the angle of inclination = 6.15(10)°.

The molecular packing in the crystal of (I) features phenyl-C—H⋯π(phenyl) interactions involving the Ph3As = O phenyl rings [C22—H22⋯Cg(C8—C13)ii: H22⋯Cg(C8—C13)ii = 2.54 Å, C22⋯Cg(C8—C13)ii = 3.430(2) Å with angle at H22 = 155° and C23—H23⋯Cg(C14—C19)iii: H23⋯Cg(C14—C19)iii = 2.88 Å, C23⋯Cg(C14—C19)iii = 3.726(3) Å with angle at H23 = 149° for (ii) 3/2 − x, 1/2 + y, 1/2 − z and (iii) 1 − x, 1 − y, −z]. With four such interactions per molecule, a three-dimensional architecture ensues.

The program Crystal Explorer 17 [10] was employed to evalaute the molecular packing further by calculating the Hirshfeld surfaces/two-dimensional fingerprint plots (overall and delineated) for the entire molecule using standard procedures [11]. There are three different types of surface contacts contributing over 98% of all contacts, namely H⋯H [58.7%], clearly dominant, C⋯H/H⋯C [33.1%] and Cl⋯H/H⋯Cl [7.0%].

Acknowledgements

Sunway University Sdn Bhd is thanked for financial support of this work through Grant No. STR-RCTR-RCCM-001–2019.

References

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Received: 2019-08-05
Accepted: 2019-09-13
Published Online: 2019-10-09
Published in Print: 2019-12-18

©2019 Kong Mun Lo 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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  70. Crystal structure of di(naphthalen-2-yl)sulfane, C20H14S
  71. Crystal structure of 3-acetyl-6-bromo-4-hydroxy-2H-chromen-2-one, C11H7BrO4
  72. Crystal structure of N′2,N′6-bis((E)-1-(pyrazin-2-yl)ethylidene)pyridine-2,6-dicarbohydrazide — methanol (1/2), C21H25N9O4
  73. The crystal structure of 3-nitro-4-(p-tolylamino)-2H-chromen-2-one, C16H12N2O4
  74. The crystal structure of 1,2-bis((4-methoxyphenyl)ethynyl)benzene, C24H18O2
  75. Crystal structure of a low-temperature (100 K) polymorph of catena-poly[(μ2-4,4′-bipyridine-κ2N,N′)-bis(O,O′-diethyldithiophosphato-κ1S)zinc(II)], C18H28N2O4P2S4Zn
  76. The pseudosymmetric low temperature polymorph of catena-poly[(μ2-4,4′-bipyridyl-κN,N′)-bis(O,O′-diethyldithiophosphato-κS)-cadmium(II)], {C18H28CdN2O4P2S4}n
  77. Crystal structure of 3-iodophthalic acid, C8H5IO4
  78. The crystal structure of tert-butyl (tert-butoxy(oxo)methyl)(5-bromo-2-fluorophenyl)carbamate, C16H21BrFNO4
  79. The crystal structure of bis(μ2-5,7-dichloroquinolin-8-olato-κ3N,O:O)-tetrakis(5,7-dichloroquinolin-8-olato-κ2N,O)bis(methanol-κ1O)dieuropium(III) — toluene (1/1), C63H39Cl12Eu2N6O8
  80. Crystal structure of dichlorido-(N′-(1-(3-ethylpyrazin-2-yl)ethylidene)-4-methoxybenzohydrazide-κ3N,N′,O)cadmium(II), C16H18N4O2Cl2Cd
  81. A redetermination of the crystal structure of catena-poly[(bis(O,O′-isopropyl dithiophosphato-κ2S,S′)-(μ2-1,2-bis(3-pyridylmethylene)hydrazine-κ2N,N′)cadmium(II)], {C24H38CdN4O4P2S4}n
https://doi.org/10.1515/ncrs-2019-0564
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Articles in the same Issue

  1. 10.1515/ncrs-2020-frontmatter1
  2. The crystal structure of 3,5-dicarboxybenzenaminium perchlorate monohydrate, C8H8ClNO9
  3. The crystal structure of poly[(m4-4-bromoisophthalato-κ4O: O′:O′′:O′′′)zinc(II)], C8H3BrO4Zn
  4. Crystal structure of (E)-2-(2-chloro-6-hydroxybenzylidene)hydrazine-1-carbothioamide, C8H8ClN3O4S
  5. Crystal structure of 1,1′-methylenebis(3-ethyl-1H-imidazol-3-ium) bis(hexafluorophosphate(V)), C11H18F12N4P2
  6. The crystal structure of hexakis(1-isopropyl-1H-imidazole-κ1N)copper(II) dichloride, C36H58Cl2CuN12
  7. Crystal structure of catena-poly[μ2-4,4′-bipyridine-κ2N:N′)-tetrakis(μ2-2-((3,5,6-trichloropyridin-2-yl)oxy)acetato-κ2O:O′)dicobalt(II)], C19H10Cl6CoN3O6
  8. Crystal structure of (E)-1-(4-(((E)-2-bromo-6-hydroxybenzylidene)amino)phenyl)ethan-1-one O-methyl oxime, C16H15BrN2O2
  9. Crystal structure of ethyl 2-methyl-4-(5-methylthiophen-2-yl)-5-oxo-1,4,5,6,7,8-hexahydroquinoline-3-carboxylate, C18H21NO3S
  10. The crystal structure of 5-bromo-2-(1-methyl-1H-tetrazol-5-yl)pyridine, C7H6BrN5
  11. Crystal structure of Bis(acetato-κ2O,O′)-bis[4-(dimethylamino)pyridine-κN]nickel(II), C18H26N4NiO4
  12. Crystal structure of (E)-3-chloro-2-(((4-chlorophenyl)imino)methyl)phenol, C13H9Cl2NO
  13. The co-crystal structure of (17b)-estra-1,3,5(10)-triene-3,17diol – acetamide (1/1), a Z′ = 4 structure, C20H29NO3
  14. Crystal structure of 3-(3-(pyridin-3-yl)ureido)benzoic acid, C13H11N3O3
  15. The crystal structure of 1,1′-(9-ethyl-9H-carbazole-3,6-diyl)bis(3-ethyl-1H-imidazol-3-ium) bis(hexafluorophosphate(IV)), C24H27N5F12P2
  16. The crystal structure of 2-bromoisophthalic acid, C8H5BrO4
  17. The crystal structure of 13-ethoxycarbonyl-9-methyl-4-chlor-11-thioxo-8-oxa-10,12-diazatricyclo[7.3.1.02,7]trideca-2,4,6-triene, C14H15ClN2O3S
  18. The crystal structure of (E)-4-((4-(diethylamino)benzylidene)amino)-N,N-diphenylaniline, C29H29N3
  19. Crystal structure of 2-(3-(2-(4-phenylpiperazin-1-yl)ethyl)benzyl)isoindoline-1,3-dione, C27H27N3O2
  20. Crystal structure of 2-ethoxy-6-((E)-((3-(((E)-3-ethoxy-2-hydroxybenzylidene)amino)-2-hydroxypropyl)iminio)methyl)phenolate, C21H26N2O5
  21. The crystal structure of catena-poly(μ2-4,4′-bipyridine-κ2N:N′)-tetrakis(μ2-2-((3,5,6-trichloropyridin-2-yl)oxy)acetato-κ2O:O′)dinickel(II)], C19H10Cl6N3NiO6
  22. Crystal structure of hexakis(μ2-azido-κ2N:N)-diazido-κ1N-tetrakis(phenanthroline-κ2N,N′)tetrazinc(II), C48H32N32Zn4
  23. Synthesis and crystal structure of bis{2-bromo-6-(((4-(1-(methoxyimino)ethyl)phenyl)imino)methyl)phenolato-κ2N,O}cobalt(II)–dichloromethane(1/1), C34H32Br2Cl4CoN4O4
  24. Crystal structure of (E)-3-chloro-2-(((4-nitrophenyl)imino)methyl)phenol, C13H9ClN2O3
  25. Crystal structure of aqua-bis(5-bromo-6-methyl-picolinato-κ2N,O)zinc(II) dihydrate, C14H16Br2N2O7Zn
  26. Crystal structure of biaqua(2,2′-bipyridine-4,4′-dicarboxylato-κ2N,N′)(pyridine-2,6-dicarboxylato-κ3O,N,O′)nickel(II) hydrate, C19H15N3NiO10
  27. Synthesis and crystal structure of bis(2-(((4-(1-(ethoxyimino)ethyl)phenyl)imino)methyl)-5-fluorophenolato-κ2N,O)zinc(II) - methanol (1/1), C33H32F2N4O4Zn
  28. Crystal structure of tetraaqua-bis(μ2-5-aminoisophthalato-κ3N:O,O′)-bis(4,4′-dipyridylsulfide-κ1N)dizinc(II), C36H34N6O12S2Ni2
  29. Crystal structure of (1,4,8,11-tetraazacyclotetradecane-κ4N,N′,N′′,N′′′)palladium(II) tetracyanonickelate(II), C14H24N8NiPd
  30. The crystal structure of 3-benzyl-1-((8-(benzyloxy)quinolin-2-yl)methyl)-1H-imidazol-3-ium hexafluorophosphate, C27H24N3OF6P
  31. Crystal structure of 1-(4-chloro-2-hydroxy-5-iodophenyl)ethan-1-one, C8H6ClIO2
  32. Crystal structure of hexaaquamagnesium(II) bis((E)-4-((4-(dimethylamino)phenyl)diazenyl)benzenesulfonate), C28H40MgN6O12S2
  33. Crystal structure of the coordination polymer catena-poly[(1,2-di(pyridin-4-yl)ethane-κN)-(μ2-2-nitroisophthalato-κ2O:O′)zinc(II)], C20H17N3O7Zn
  34. Crystal structure of catena-{[tri-aqua-di-sodium bis(2-{[n-butyl(methyl)carbamothioyl]sulfanyl}acetate)]}n, [C16H34N2Na2O7S4]n
  35. The crystal structure of diaqua-bis(μ2-3-((3-acetyl-5-carboxyphenyl)oxidophosphoryl)-5-carboxybenzoato-κ2O:O′)bis(5,5′-dimethyl-2,2′-bipyridine-k2N,N′)zinc(II), C56H46N4O22P2Zn2
  36. Crystal structure of N′,2-bis((E)-2-chloro-6-hydroxybenzylidene)hydrazine-1-carbothiohydrazide, C15H12Cl2N4O2S
  37. Crystal structure of 2-[(1E)-{[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]iminiumyl}methyl]-5-(dodecyloxy)benzen-1-olate, C23H39NO5
  38. Crystal structure of 12-(2-hydroxybenzoyl)benzo[f]pyrido[1,2-a]indole-6,11-dione, C23H13NO4
  39. Crystal structure of chlorido-(4-chloro-6-(p-tolyl)pyrimidine-κ2C,N)-(triphenylphosphane-κP)palladium(II), C29H23Cl2N2PPd
  40. Crystal structure of catena-poly[diaqua-bis(3,4,5,6-tetrabromo-carboxybenzoato-κ1O)-(μ2-4,4′-bipyridine-κ2N:N′)cobalt(II)], C26H14Br8CoN2O10
  41. Crystal structure of catena-poly[dibenzyl-dichlorido-(μ2-[4,4′-bipyridine]1,1′-dioxide-κ2O:O′)tin(IV)], C24H22Cl2N2O2Sn
  42. Crystal structure of benzyl-chlorido-(4-chloro-N-[(2-oxidophenyl)methylidene]benzenecarbohydrazonato)-methanol-tin(IV), C22H20Cl2N2O3Sn
  43. Crystal structure of catena-poly[triaqua-(1,3-di(1H-imidazol-1-yl)benzene-κ2N:N′)-(3-nitrophthalato-κ1O)cobalt(II)] — water (2/3), C20H22N5O10.5Co
  44. Crystal structure of (3R,5R,8R,9R,10R,12R,13R,14R)-4,4,8,10,14-pentamethyl-17-((R)-2,6,6-trimethyltetrahydro-2H-pyran-2-yl)hexadecahydro-1H-cyclopenta[a]phenanthrene-3,12-diol, C30H52O3
  45. Crystal structure of 3-(3-(4-carboxyphenyl)ureido)pyridin-1-ium perchlorate, C26H24Cl2N6O14
  46. Crystal structure of 8-hydroxy-2-methylquinolin-1-ium chloride dihydrate, C10H14ClNO3
  47. Crystal structure of (dibenzyl sulphoxide-κO)dibromido-bis(4-bromobenzyl-κC)tin(IV), C28H26Br4OSSn
  48. Crystal structure of bromido-tri(4-chlorophenyl-κ1C)-(ethanol-κ1O)tin(IV) — 4,4′-dimethyl-2,2′-bipyridine (2/1), C52H48Br2Cl6N2O2Sn2
  49. Crystal structure of 2-butyl-6-(ethylamino)-1H-benzo[de]isoquinoline-1,3(2H)-dione, C18H20N2O2
  50. Crystal structure of (4-chloro-N-[(2-oxido-5-chlorophenyl)methylidene] benzene-carbohydrazonato-κ3N,O,O′)bis(2-fluorobenzyl)tin(IV), C28H20Cl2F2N2O2Sn
  51. Crystal structure of aqua-chlorido-(4-fluorobenzyl-κC)-(N′-(4-methoxy-2-oxidobenzylidene)-3-hydroxy-2-naphthohydrazidato-κ3N,O,O′)tin(IV), C26H22ClFN2O5Sn
  52. Crystal structure of catena-poly[tri(4-chlorophenyl)-(μ2-hydroxido)tin(IV)] – 2-propanol (1/1), C21H21Cl3O2Sn
  53. Crystal structure of bromido-dimethyl-4-tolyl-(triphenylphosphine oxide)tin(IV), C27H28BrOPSn
  54. Crystal structure of 2-(bis(2-hydroxyethyl)ammonio)ethane-1-sulfonate, C6H15NO5S
  55. Crystal structure of bis[triaqua-(μ2-1,2-di(4-pyridyl)ethylene-κ2N:N′)-(4-sulfonatobenzoato-κ2O,O′)zinc(II)], C13H15NO8SZn
  56. Crystal structure of 2-((2-(3-hydroxy-7-methylene-2,3-dihydro-7H-furo[3,2-g]chromen-2-yl)propan-2-yl)oxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol – a marmesin derivative, C20H24O10
  57. Crystal structure of octa(4-chlorobenzyl)-dichlorido-bis(μ2-methanolato)-bis(μ3-oxo)-tetratin(IV), C58H54Cl10O4Sn4
  58. Crystal structure of iodido-triphenyl-(triphenylphosphine oxide)tin(IV), C36H30IOPSn
  59. Crystal structure of dichlorido-bis(4-methylphenyl-κC)-bis(triphenylarsine oxide-κO)tin(IV), C50H44As2Cl2O2Sn
  60. Crystal structure of 4-benzyl-1-oxo-N-phenethyl-1H-[1,4]oxazino [4,3-b]indazole-3-carboxamide, C26H21N3O3
  61. Crystal structure of bis{(N-[(5-chloro-2-oxidophenyl)methylidene]-2-hydroxybenzenecarbohydrazonato)-dioxo-molybdenum(VI)}(μ2-4,4′-bipyridine), C38H26Cl2Mo2N6O10
  62. Crystal structure of dichlorido-octamethyl-bis(μ3-oxido)-bis(μ2-2-(phenylamino)ethanolato-κ2O:O)tetratin(IV), C24H44Cl2N2O4Sn4
  63. The crystal structure of 1-(2-(2-(imidazo[1,5-a]pyridine-4-ium)ethoxy)ethyl)-imidazo[1,5-a]pyridine-4-ium bis(hexafluorophosphate) — acetonitrile (1/1), C18H20ON4F12P2
  64. Crystal structure of cyclo[tetra(μ2-cyanido)-tetracyanido-bis(1,4,7,10-tetraazacyclododecane-κ4N,N′,N′′,N′′′)dinickel(II)dipalladium(II)] hexahydrate, C24H52N16Ni2O6Pd2
  65. Crystal structure of (dimethyl sulfoxide)-dioxido-[2-hydroxy-N′-(4-oxo-4-phenylbutan-2-ylidene)benzohydrazidato κ3N,O,O′]molybdenum(VI), C19H20MoN2O6S
  66. Crystal structure of bis(acetylacetonato-κ2O,O′)-(ethanolamine-κ2N,O)copper(II), C14H25CuNO5
  67. Crystal structure of chlorido-diphenyl-(isopropyl(propyl)carbamodithioato-κ2S,S′)tin(IV), C19H24ClNS2Sn
  68. The crystal structure of bis(imidazole-1-yl)methane monohydrate, C7H10N4O
  69. The crystal structure of bis(4-nitroimidazole-1-1yl)methane, C7H6N6O4
  70. Crystal structure of di(naphthalen-2-yl)sulfane, C20H14S
  71. Crystal structure of 3-acetyl-6-bromo-4-hydroxy-2H-chromen-2-one, C11H7BrO4
  72. Crystal structure of N′2,N′6-bis((E)-1-(pyrazin-2-yl)ethylidene)pyridine-2,6-dicarbohydrazide — methanol (1/2), C21H25N9O4
  73. The crystal structure of 3-nitro-4-(p-tolylamino)-2H-chromen-2-one, C16H12N2O4
  74. The crystal structure of 1,2-bis((4-methoxyphenyl)ethynyl)benzene, C24H18O2
  75. Crystal structure of a low-temperature (100 K) polymorph of catena-poly[(μ2-4,4′-bipyridine-κ2N,N′)-bis(O,O′-diethyldithiophosphato-κ1S)zinc(II)], C18H28N2O4P2S4Zn
  76. The pseudosymmetric low temperature polymorph of catena-poly[(μ2-4,4′-bipyridyl-κN,N′)-bis(O,O′-diethyldithiophosphato-κS)-cadmium(II)], {C18H28CdN2O4P2S4}n
  77. Crystal structure of 3-iodophthalic acid, C8H5IO4
  78. The crystal structure of tert-butyl (tert-butoxy(oxo)methyl)(5-bromo-2-fluorophenyl)carbamate, C16H21BrFNO4
  79. The crystal structure of bis(μ2-5,7-dichloroquinolin-8-olato-κ3N,O:O)-tetrakis(5,7-dichloroquinolin-8-olato-κ2N,O)bis(methanol-κ1O)dieuropium(III) — toluene (1/1), C63H39Cl12Eu2N6O8
  80. Crystal structure of dichlorido-(N′-(1-(3-ethylpyrazin-2-yl)ethylidene)-4-methoxybenzohydrazide-κ3N,N′,O)cadmium(II), C16H18N4O2Cl2Cd
  81. A redetermination of the crystal structure of catena-poly[(bis(O,O′-isopropyl dithiophosphato-κ2S,S′)-(μ2-1,2-bis(3-pyridylmethylene)hydrazine-κ2N,N′)cadmium(II)], {C24H38CdN4O4P2S4}n
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