Home Physical Sciences The crystal structure of hexakis(1-isopropyl-1H-imidazole-κ1N)copper(II) dichloride, C36H58Cl2CuN12
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The crystal structure of hexakis(1-isopropyl-1H-imidazole-κ1N)copper(II) dichloride, C36H58Cl2CuN12

  • Miao Cheng and Shuang Cheng EMAIL logo
Published/Copyright: September 18, 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

C36H58Cl2CuN12, monoclinic, P21/c (no. 14), a = 8.1490(8) Å, b = 17.0301(15) Å, c = 16.8649(14) Å, β = 101.629(3)°, Z = 2, V = 2292.4(4) Å3, Rgt(F) = 0.0419, wRref(F2) = 0.1121, T = 298(2) K.

CCDC no.: 1946284

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:Blue block
Size:0.22 × 0.20 × 0.18 mm
Wavelength:Mo Kα radiation (0.71073 Å)
μ:0.63 mm−1
Diffractometer, scan mode:Bruker SMART APEX-II, φ and ω
θmax, completeness:25.0°, >99%
N(hkl)measured, N(hkl)unique, Rint:11331, 4033, 0.033
Criterion for Iobs, N(hkl)gt:Iobs > 2 σ(Iobs), 2846
N(param)refined:237
Programs:Bruker [1], SHELX [2]
Table 2:

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

AtomxyzUiso*/Ueq
Cu11.0000000.5000000.5000000.04109(17)
N11.1122(3)0.40773(12)0.45637(13)0.0382(5)
N21.2519(3)0.29984(13)0.44242(14)0.0471(6)
N31.1256(3)0.57126(12)0.43537(13)0.0379(5)
N41.1845(4)0.66314(15)0.35461(18)0.0675(8)
N50.7534(3)0.48437(14)0.37788(16)0.0541(6)
N60.5542(3)0.47905(14)0.26673(15)0.0524(6)
Cl10.32382(9)0.23645(4)0.19130(5)0.0532(2)
C11.1986(4)0.34863(16)0.49401(17)0.0458(7)
H11.2201010.3416300.5498380.055*
C21.1121(4)0.39567(16)0.37589(16)0.0430(7)
H21.0605610.4282270.3339240.052*
C31.1975(4)0.32984(17)0.36664(17)0.0479(7)
H31.2159090.3089260.3182340.057*
C41.3401(4)0.22448(17)0.4658(2)0.0628(9)
H41.3681610.2222480.5250180.075*
C51.4997(5)0.2206(2)0.4357(3)0.0882(13)
H5A1.4755830.2221690.3775900.132*
H5B1.5571500.1726600.4537320.132*
H5C1.5691320.2645300.4563480.132*
C61.2233(6)0.1580(2)0.4369(4)0.126(2)
H6A1.1962000.1579730.3788040.188*
H6B1.1226090.1641960.4575900.188*
H6C1.2761700.1092560.4557890.188*
C71.0658(4)0.62744(18)0.38461(19)0.0553(8)
H70.9529670.6407570.3711470.066*
C81.2944(4)0.57080(18)0.43694(18)0.0499(7)
H81.3713610.5364610.4670470.060*
C91.3312(4)0.62759(19)0.3883(2)0.0618(9)
H91.4370190.6402340.3793570.074*
C101.1586(8)0.7298(2)0.2958(3)0.128(2)
H101.0361380.7268780.2813020.154*
C111.1902(6)0.7117(3)0.2199(3)0.1009(15)
H11A1.2234580.7509480.1881200.121*
H11B1.1780970.6603550.2008230.121*
C121.1694(7)0.8027(2)0.3353(3)0.1176(19)
H12A1.2839250.8130550.3602810.176*
H12B1.1022370.8016690.3759680.176*
H12C1.1293150.8431940.2966420.176*
C130.6668(4)0.52378(18)0.3171(2)0.0546(8)
H130.6811250.5771990.3093190.065*
C140.6929(4)0.40928(18)0.36523(19)0.0548(8)
H140.7307870.3668830.3987010.066*
C150.5720(4)0.40487(17)0.29829(19)0.0538(8)
H150.5123990.3603340.2775720.065*
C160.4399(5)0.5047(2)0.1929(2)0.0698(10)
H160.4482180.5619580.1899380.084*
C170.4935(7)0.4708(3)0.1191(2)0.1114(17)
H17A0.6074400.4855510.1195010.167*
H17B0.4222400.4908930.0709850.167*
H17C0.4849380.4146370.1198780.167*
C180.2604(5)0.4849(3)0.1955(3)0.1006(15)
H18A0.2450790.4289920.1916100.151*
H18B0.1870120.5097910.1509070.151*
H18C0.2350790.5031760.2454690.151*

Source of material

In a 25 mL round-bottom flask, N-isopropylimidazole (1.102 g; 10 mmol), and copper(II) chloride dihydrate (0.341 g; 2 mmol), molybdenyl acetylacetonate (0.328 g; 1 mmol) and 15 mL water were added successively. The mixture was heated to 80 °C for 6 h, resulting in a blue solution. The mixture was filtrated and the filtrate stood by slow evaporation for seven days. Crystals of the title complex were obtained.

Yield: 52% (based on Cu element), and elemental analysis: calc. for C36H58Cl2CuN12: C 54.50, H 7.37, N 21.19; found: C 54.55, H 7.24, N 21.24 (PERKIN ELMER MODEL 2400 SERIES II).

Experimental details

All hydrogen atoms were refined with variable isotropic displacement parameters. Hydrogen atoms were assigned with common isotropic displacement factors Uiso(H) = 1.5 times Ueq (C, methyl) and Uiso(H) = 1.2 times Ueq (C, imidazole and methylene). All the H atoms were refined as riding on their parent atom.

Comment

Copper complexes are a class which have been widely used in gas storage and separation and catalysis [3], [4], [5]. The design of new copper complexes not only expands our understanding of structure and bonding but also extends the range of copper-inspired materials [6], [7]. So far, a variety of organic-inorganic hybrids containing copper complexes have been demonstrated [8]. In addition, as a class of versatile N-ligands, imidazole derivatives can be used not only as a solvent but also as a ligand in the synthesis of metal complexes [9], [10]. However, to the best of our knowledge, examples of imidazole-copper complexes of organic-inorganic hybrids are still rare.

The molecular structure of the title complex is shown in the figure. The title complex contains six N-isopropylimidazole ligands, one copper cation and two free chlorine anions. The copper cation adopts a distorted octahedron geometry and is located on an inversion center. The four short Cu—N distances in the equatorial plane; Cu—N(1) is 2.029(2) Å and the Cu—N(3) is 2.039(2) Å, are comparable to inner sphere Cu—N distances found in the hexakis (N-methylimidazole) copper(II) salicylate complexes [11]. The two long distances Cu—N(5) and Cu—N(5A) in the complex are 2.585(3) Å, which are similar with those reported for hexakis(1-(4-cyanophenyl)imidazole-N3)-copper(II) diperchlorate [12]. The bond angles around the copper(II) ion are N(1)—Cu(1)—N(3) (89.95(8)°), N(1)—Cu(1)—N(5) (94.22(8)°), N(3)—Cu(1)—N(5) (91.45(8)°), which are similar with those of bis(4,5-dicyano-1H-imidazol-1-yl)-tetrakis(1-methyl-1H-imidazole)copper(II) [13] and a more complex material [14].

Funding source: Research on Experimental Technology of Liaocheng University

Award Identifier / Grant number: 38622170214

Funding statement: We gratefully acknowledge support by the Research on Experimental Technology of Liaocheng University (38622170214).

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Received: 2019-06-25
Accepted: 2019-08-09
Published Online: 2019-09-18
Published in Print: 2019-12-18

©2019 Miao Cheng 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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  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-2019-0432
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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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