Coordination chemistry of thioether–pyridazine macrocycles. I. Synthetic, structural, and spectroscopic studies of Cu(II) and Cu(I) complexes of novel thioether–pyridazine macrocycles that contain two or three pyridazine subunits

1992 ◽  
Vol 70 (7) ◽  
pp. 1886-1896 ◽  
Author(s):  
Liqin Chen ◽  
Laurence K. Thompson ◽  
John N. Bridson
Keyword(s):  
Copper Complexes ◽  
Spin Exchange ◽  
Spectroscopic Studies ◽  
Esr Spectra ◽  
Monoclinic System ◽  
Space Group ◽  
X Ray ◽  
X Ray Crystallography ◽  
Triclinic System ◽  
Square Planar

The preparations of thioether–pyridazine macrocycles containing three (L1) and two (L2) pyridazine subunits and their copper complexes are described. The ligands are characterized by 1H nuclear magnetic resonance and mass spectrometry and in one case by X-ray crystallography, and the complexes by infrared, electronic, and electron spin resonance (esr) spectra and in some cases by X-ray crystallography. The complex [Cu3(L1)2Cl6]•2CHCl3 (1) crystallized in the triclinic system, space group [Formula: see text] with a = 13.661(2) Å, b = 14.174(3) Å, c = 9.412(2) Å, α = 101.08(2)°, β = 96.94(2)°, γ = 75.76(2)°, V = 1728.2(6) Å3, and Z = 2 (R = 0.056, Rw = 0.048 for 2080 reflections). Two monodentate pyridazine rings in each ligand bind to one square-planar copper centre with the third monodentate pyridazine in each ligand linking the two to the central square-planar copper. The complex [Cu(L2)Cl2] (2) crystallized in the orthorhombic system, space group Pnma, with a = 8.571(1) Å, b = 16.104(3) Å, c = 13.961(2) Å, V = 1927(1) Å3, and Z = 4 (R = 0.037, Rw = 0.033 for 1070 reflections). A cis square-planar structure exists for 2 with monodentate pyridazines. [Cu(L2)2]•(ClO4)2•CH3CN•CHCl3 (5) crystallized in the triclinic system, space group [Formula: see text] with a = 12.888(4) Å, b = 17.462(6) Å, c = 10.906(1) Å, α = 96.07(2)°, β = 104.18(2)°, γ = 94.51(2)°, V = 2352(1) Å3, and Z = 2 (R = 0.053, Rw = 0.044 for 2941 reflections). Two ligands involving monodentate pyridazine rings bind to a square-planar copper(II) centre. The protonated ligand salt [L2H](ClO4)•H2O (6) crystallized in the monoclinic system, space group P21/n, with a = 14.762(4) Å, b = 8.637(5) Å, c = 16.267(4) Å, β = 92.78(2)°, V = 2072(1) Å3, and Z = 4 (R = 0.064, Rw = 0.053 for 1456 reflections). No sulfur coordination is observed in these complexes and there is no apparent spin exchange in the trinuclear derivative.

Coordination chemistry of thioether–pyridazine macrocycles. III. Synthetic, structural, and spectroscopic studies of Cu(II), Cu(II)Cu(I), and Cu(I) complexes of a hexathiapyridazinophane macrocyclic ligand

1993 ◽  
Vol 71 (7) ◽  
pp. 1086-1093 ◽  
Author(s):  
Liqin Chen ◽  
Laurence K. Thompson ◽  
John N. Bridson
Keyword(s):  
Mass Spectrometry ◽  
Macrocyclic Ligand ◽  
Spectroscopic Studies ◽  
Orthorhombic System ◽  
Space Group ◽  
X Ray ◽  
X Ray Crystallography ◽  
Triclinic System ◽  
Square Planar ◽  
Copper Centre

The preparation and properties of the thioether–pyridazine macrocycle (L4; C16H20S6N4) containing two pyridazine subunits, and its Cu(II), Cu(II)Cu(I), and Cu(I) complexes are described. The ligand is characterized by 1H nuclear magnetic resonance and mass spectrometry, and the complexes by infrared, eleetronic spectra, and magnetism, and in some cases by X-ray crystallography. The complex [Cu2(L4)Cl4]x, (1) crystallized in the triclinic system, space group [Formula: see text] with a = 8.6204(8) Å, b = 9.850(1) Å, c = 8.348(1) Å, α = 111.46(1)°, β = 102.50(1)°, γ = 71.818(9)°, V = 622.6(1) Å3, and Z = 1 (R = 0.043, Rw = 0.042 for 1312 reflections). Two monodentate pyridazine rings in the same ligand bind to one trans square-planar copper centre (CuN2Cl2) with two sulfurs from each ligand binding to another trans square-planar copper centre (CuS2Cl2) to form a polynuclear chain. The complex [Cu(L4)Cl2] (3) crystallized in the triclinic system, space group [Formula: see text] with a = 11.001(1) Å, b = 12.888(2) Å, c = 8.704(1) Å, α = 102.89(1)°, β = 103.36(1)°,γ = 75.84(1)°, V = 1145.8(3) Å3 and Z = 2 (R = 0.056, Rw = 0.044 for 2059 reflections). A trans square-planar structure (CuN2Cl2) exists for 3 with monodentate pyridazines. [Cu(L4)(NO3)2] (4) crystallized in the orthorhombic system, space group P212121, with a = 15.148(2) Å, b = 15.562(3) Å, c = 11.064(1) Å, V = 2608.2(7) Å3 and Z = 4 (R = 0.039, Rw = 0.034 for 1864 reflections). Two monodentate pyridazine rings and two bidentate nitrates bind to a pseudo-octahedral copper(II) centre.

Coordination chemistry of thioether–pyridazine macrocycles II. Synthesis, structural and spectroscopic studies of dinuclear copper(II) and polynuclear copper(I) and silver(I) complexes of a tetrathiapyridazinophane macrocyclic ligand

1992 ◽  
Vol 70 (11) ◽  
pp. 2709-2716 ◽  
Author(s):  
Liqin Chen ◽  
Laurence K. Thompson ◽  
John N. Bridson
Keyword(s):  
Macrocyclic Ligand ◽  
Silver Ions ◽  
Spectroscopic Studies ◽  
Binuclear Complexes ◽  
Monoclinic System ◽  
Magnetic Susceptibility Data ◽  
Space Group ◽  
X Ray ◽  
X Ray Crystallography ◽  
Susceptibility Data

The preparation and properties of the thioether–pyridazine macrocycle (L3; C11H16N2S4) containing one pyridazine subunit, and its copper(II), copper(I), and silver(I) complexes are described. Magnetic susceptibility data (5–300 K) for the binuclear complexes [CuL3Cl2]2 (I) and [CuL3Br2]2 (II) have been fitted to the Friedberg magnetization expression with a molecular field correction. Intradimer antiferromagnetic exchange is weak (−2J < 18 cm−1), with even weaker interdimer exchange (−zJ′ < 0.3 cm−1). The complexes [CuL3Cl]x (III) and [AgL3ClO4]x (V) have been characterized by X-ray crystallography. III crystallizes in the triclinic system, space group [Formula: see text], with a = 9.410(2) Å, b = 10.291(2) Å, c = 9.208(2) Å, α = 108.56(1)°, β = 91.82(2)°, γ = 68.04(1)°, V = 780.1(2) Å3, and Z = 2(R = 0.035, Rw = 0.031 for 1856 reflections). The ligand acts as a bidentate, S2, bridge between dinuclear Cu2Cl2 units in a double stranded polymer. III crystallized in the monoclinic system, space group P21/n, with a = 9.382(4) Å, b = 19.274(4) Å, c = 10.190(3) Å, β = 106.35(3)°, V = 1768(1) Å3, and Z = 4 (R = 0.036, Rw = 0.029 for 1776 reflections). The structure consists of a polymeric, two dimensional sheet structure, involving pseudo-tetrahedral silver ions linked by exo-bidentate, S2, ligands and bidentate perchlorates.

The crystal and molecular structure of aqua-bis(ethylenediamine)cupric-tris(cyano)-selenocyanatodicuprate

1982 ◽  
Vol 47 (10) ◽  
pp. 2623-2632 ◽  
Author(s):  
Viktor Vrábel ◽  
Jan Lokaj ◽  
Ján Garaj ◽  
František Pavelčík
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Structural Analysis ◽  
Least Squares Method ◽  
Crystal And Molecular Structure ◽  
Three Dimensional ◽  
Monoclinic System ◽  
Space Group ◽  
X Ray ◽  
Triclinic System

The crystal structure of [Cu(H2O)(en)2][Cu2(CN)3(SeCN)] was solved by single crystal X-ray structural analysis in the triclinic system with a space group of P1 and in the monoclinic system with a space group of C2. In the triclinic system the unit cell has dimensions of a = 0.8445(3), b = 0.7903(3), c = 0.8444(3) nm, α = 119.58(2), β = 118.59(2) and γ = 93.63(3)° and, in the monoclinic system, a = 1.3331(4), b = 0.8670(2), c = 0.8267(3), β = 122.60(2)°. The structure was refined by the least squares method to final value of R = 5.5% in the triclinic system and R = 7.8% in the monoclinic system. The coordination sphere around the Cu(II) atom is square pyramidal, formed of two ethylenediamine molecules and one water molecule. The Cu(I) atoms are tetrahedrally coordinated by bridging SeCN and CN ligands to form infinite three-dimensional chains. The SeCN group is bonded to the Cu(I) atoms through the Se atom at distances of 0.2731(3) and 0.2745(3) nm.

Synthetic and Structural Studies of Binuclear Organopalladium(II) Complexes Including a Bis(pyridin-2-yl)phenylmethyl Complex With Four- and Eight-Membered Palladocycle Rings, trans(N,N)-(Pd(μ-Py2PhC-N,N',C')Cl)2.½CH2Cl2.½Me2CO

1988 ◽  
Vol 41 (5) ◽  
pp. 651 ◽  
Author(s):  
AJ Canty ◽  
NJ Minchin ◽  
LM Engelhardt ◽  
BW Skelton ◽  
AH White
Keyword(s):  
Ethyl Acetate ◽  
Column Chromatography ◽  
Isolation Procedure ◽  
Addition Reactions ◽  
Structural Studies ◽  
Monoclinic System ◽  
Space Group ◽  
X Ray ◽  
Square Planar ◽  
System 2

The byridin-2-yl) phenylchloromethanes PyPh2CCl and Py2PhCCl undergo oxidative addition reactions with bis ( dibenzylideneacetone )palladium(0) to form {Pd(PyPh2C) Cl }2 (1) and {Pd(Py2PhC)C}2.�2CH2Cl2.�Me2CO (2), respectively. n.m.r , studies of (1) in CDCl3 indicate presence of an equilibrium between two isomers, involving the ligand (pyridin-2-yl ) diphenylmethyl in η3-coordination, {Pd(η3-PyPh2C)(μ- Cl )}2. Complex (2) has two bis (pyridin-2-yl) phenylmethyl groups present as bridging N,C′- ligands , with the groups also N,C- bidentate to each palladium, to form a binuclear compex containing four- and eight- membered palladocycles: PdC(CN)CNPdC(CN)CNBoth palladium(II) centres in (2) have square-planar 'trans-PdCN2Cl' coordination, so that (2) may be represented as trans(N,N)-{Pd(μ- Py2PhC-N,N′, C′) Cl }2.�CH2Cl2.�Me2CO. A complex similar to (2), trans(N,N)-{Pd(μ- PyPhCH -N,C?)( γmpy ) Cl }2.CH2Cl2 (3), forms on reaction of the lithium derivative of 2-benzylpyridine, Li( PyPhCH ), with dichlorobis (4-methylpyridine)palladium(II); (3) reacts with excess 2-benzylpyridine with displacement of γmpy to form trans(N,N)-{Pd(μ- PyPhCH -N,C?)(PyPhCH2) Cl }2 (4). In developing an alternative isolation procedure for (3), involving column chromatography with 4% ethyl acetate in chloroform, the coordination complex trans- bis{1-phenyl-1-(pyridin-2-yl)prop-1-en-2-olato-O,N}palladium(II), Pd{( PyPhC )C(Me)O}2 (5), was isolated in low yield. X-Ray structural studies of (2)-(5) have been completed, with all four complexes crystallizing in the monoclinic system; (2): space group P21/c, a 9.649(6), b 21.116(9), c 18.627(7)Ǻ,β 111.42(4)°, Z 4; (3): P21/c, a 13.967(2), b 13.996(3), c 18.886(2)Ǻ, β 98.74(1)°, Z 4; (4): P21/n, a 14.274(9), b 14.584(14), c 20.97(2)Ǻ, β 109.18(5)°, Z 4; (5): P21/c, a 15.184(3), b 7.887(6), c 19.240(2)Ǻ, β 97.51(1)°, Z 4.

Synthesis and characterization of [MII(bqb)] (M = Co, Ni, Cu), [N(n-Bu)4][CoIII(bqb)(CN)2], and [N(n-Bu)4][CoIII(bqb)(N3)2] containing deprotonated N,N'-bis(2-quinolinecarboxamide)-1,2-benzene (bqb) – X-ray crystal structures of [NiII(bqb)] and [N(n-Bu)4][CoIII(bqb)(N3)2]

2006 ◽  
Vol 84 (7) ◽  
pp. 971-978 ◽  
Author(s):  
Soria Meghdadi ◽  
Mehdi Amirnasr ◽  
Vratislav Langer ◽  
Alison Zamanpoor
Keyword(s):  
Crystal Structures ◽  
Molecular Structures ◽  
Monoclinic Space Group ◽  
Space Group ◽  
X Ray ◽  
X Ray Crystallography ◽  
H Nmr ◽  
Square Planar ◽  
Distorted Octahedral ◽  
Elemental Analyses

Cobalt(II), nickel(II), copper(II), and two cobalt(III) complexes of a new dianionic ligand, bqb, [H2bqb = N,N'-bis(2-quinolinecarboxamide)-1,2-benzene] have been synthesized and characterized by elemental analyses, IR, and 1H NMR spectroscopy. The crystal and molecular structures of the [Ni(bqb)] (2) and [N(n-Bu)4][CoIII(bqb)(N3)2] (5) complexes were determined by X-ray crystallography. Complex 2 crystallizes in the monoclinic space group C2/c with a distorted square-planar structure including two short Ni–N (1.848 Å) and two long Ni–N (1.958 Å) bonds. The structure consists of sheets formed in the plane parallel to the b axis and diagonal to vectors a and c by intermolecular hydrogen bonds. Complex 5 crystallizes in the monoclinic space group C2 with a distorted octahedral structure. The [N(n-Bu)4]+ ion is disordered at the C3A and C4A atoms of one Bu. The IR and 1H NMR spectra of the complexes are also discussed.Key words: N4-dianionic amido ligand (bqb), (bqb) complexes of Co(II), Ni(II), Cu(II), and Co(III), azide, cyanide, X-ray crystal structures.

[Ni5(SEt)10] und [Ni4(SC6H11)8], homoleptische Nickel-Thiolate mit pentagonal-prismatischen und cubanartigen Schwefelgerüsten /[Ni5(SEt)10] and [Ni4(SC6H11)8], Homoleptic Nickel-Thiolates with Pentagonal-Prismatic and Cubane-Like Sulfur Frameworks

1987 ◽  
Vol 42 (9) ◽  
pp. 1121-1128 ◽  
Author(s):  
Michael Kriege ◽  
Gerald Henkel
Keyword(s):  
Methylene Chloride ◽  
Methanol Solution ◽  
Monoclinic Space Group ◽  
Orthorhombic Space Group ◽  
Space Group ◽  
X Ray ◽  
X Ray Crystallography ◽  
Coordination Sites ◽  
Square Planar ◽  
Solvent Molecules

NiCl2 reacts with NaSR in methanol solution to give the black diamagnetic complexes [Ni5(SR)10] (R = Et, 1) and [Ni4(SR)8] (R = C6H11 , 2). Crystals of 1 are monoclinic, space group P21/h with a = 13.149(4), b = 15.571(4), c = 17.917(5) Å , β = 105.31(2)° and Z = 4. 2 crystallizes from methylene chloride with sixteen solvent molecules per unit cell in the orthorhombic space group Ibca with a = 17.902(8), b = 18.289(8), c = 37.99(2) Å and Z = 8. The structures of 1 and [Ni4(SC6HM)8] · 2 CH 2Cl2 (3) have been determined by X-ray crystallography and refined to R(RW) = 0.072 (0.062) and 0.119 (0.128), respectively. Both complexes are cyclic neutral molecules and contain square planar NiS4 coordination sites (1: mean Ni - S 2.200 Å , mean S -Ni -S 81.8 ( 2 x ) . 98.3 ( 2 x ) , 170.8° ( 2 x ) ; 2: mean Ni - S 2.213 Å , mean S - Ni - S 80.9 (2 x ) , 98.2 ( 2 x ) , 167.5°(2 x )) condensed via opposite edges. A s a result, prismatic sulfur frameworks are observed which are pentagonal in the case of 1 and tetragonal in the case of 2. Their lateral faces are centered by Ni atoms. The symmetry of the Ni-S core portion approaches D5h for 1 and D4h for 2. With reference to the toroidal N i-S frameworks, the sulfur-carbon bonds of each pair of opposite ligands are in axial and equatorial positions, respectively. This configuration alternates around the prismatic sulfur arrangement which is completely compatible with the even number of nickel atoms present in 2, but results in a node for 1 due to the five-fold symmetry.

scholarly journals Spectral Analysis and Crystal Structures of 4-(4-Methylphenyl)-6-Phenyl-2,3,3a, 4-Tetrahydro-1H-Pyrido[3,2,1-jk]Carbazole and 4-(4-Methoxyphenyl)-6-Phenyl-2,3,3a, 4-Tetrahydro-1H-Pyrido[3,2,1-jk]Carbazole

2011 ◽  
Vol 2011 ◽  
pp. 1-7
Author(s):  
J. Kalyana Sundar ◽  
S. Natarajan ◽  
S. Chitra ◽  
Nidhin Paul ◽  
P. Manisankar ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Spectroscopic Properties ◽  
Boat Conformation ◽  
X Ray Diffraction ◽  
Monoclinic System ◽  
Space Group ◽  
X Ray ◽  
Triclinic System ◽  
New Compounds ◽  
Twist Boat

The crystal structures of 4-(4-methylphenyl)-6-phenyl-2,3,3a,4-tetrahydro-1H-pyrido[3,2,1-jk]carbazole (IIa) and 4-(4-methoxyphenyl)-6-phenyl-2,3,3a,4-tetrahydro-1H-pyrido[3,2,1-jk]carbazole (IIb) were elucidated by single crystal X-ray diffraction. Compound (IIa), C28H25N, crystallizes in the triclinic system, space group P-1, with a=8.936(2) Å,b=10.490(1) Å,c=11.801(1) Å,α=102.69(5)°, β=103.27(3)°,γ=93.80(1)°, and Z=2. The compound (IIb), C28H25NO, crystallizes in the monoclinic system, space group P21/a, with a=11.376(5) Å,b=14.139(3) Å,c=13.237(4) Å,β=97.41(3)°, and Z=4. In both the structures, the pyrido ring adopts a twist boat conformation and the carbazole molecule has the twisted envelope structure with C3 and C13 at the flap. No classical hydrogen bonds are observed in the crystal structures. Details of the preparation, structures, and spectroscopic properties of the new compounds are discussed.

Pseudo-oxocarbons complexes - complexation of 2,4-bis(dicyanomethylene)-cyclobutane-1,3-dione dianion with copper. X-ray identification and electrochemical properties of the dianion and copper(I) and (II) complexes

2000 ◽  
Vol 78 (2) ◽  
pp. 280-290 ◽  
Author(s):  
Paul-Louis Fabre ◽  
Christophe Pena ◽  
Anne Marie Galibert ◽  
Brigitte Soula ◽  
Gérald Bernardinelli ◽  
...  
Keyword(s):  
Copper Complexes ◽  
Electrochemical Behaviour ◽  
Monoclinic Space Group ◽  
Crystal Data ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray ◽  
X Ray Crystallography ◽  
Polymeric Chains ◽  
Complex Copper

The compound (Ph4P)2(trans-cdcb)·2H2O (trans-cdcb2- = 2,4-bis(dicyanomethylene)-cyclobutane-1,3-dione dianion) has been synthesized and characterized by X-ray crystallography. Crystal data: triclinic, space group P1, a = 10.829(2) Å, b = 11.297(2) Å, c = 11.515(2) Å, α = 79.61(1)°, β = 68.54(1)°, γ = 63.49(1)°, V = 1172.9(4) Å3, Z = 1, R = 0.036, Rw = 0.047. With the dianion as a ligand, two complexes have been obtained and characterized by X-ray crystallography, UV-visible spectroscopy, and electrochemistry. The copper(II) complex [Cu(trans-cdcb)(H2O)4·2H2O]n consists of polymeric chains with copper atoms bonded to two of the nitrile groups of the ligand. Crystal data: monoclinic, space group P21/c, a = 9.6366(6) Å, b = 7.1292(3) Å, c = 10.7018(6) Å, β = 99.603(4)°, V = 724.92(7) Å3, Z = 2, R = 0.026, Rw = 0.041. The copper(I) complex[Cu2(trans-cdcb)(CH3CN)4·2CH3CN]n consists of polymeric chains with copper atoms bonded by all the four nitrile groups of the ligand. Crystal data: monoclinic, space group P21/n, a = 10.654(2) Å, b = 8.736(1) Å, c = 14.654(3) Å, β = 109.01(2)°, V = 1291.3(9) Å3, Z = 2, R = 0.037, Rw = 0.041. In CH3CN solution, the copper complexes are dissociated. Moreover, copper(II) is reduced into copper(I) by the dianion. Electrochemistry in the solid state (polymer coated electrode) showed the redox transitions of the different compounds.Key words: pseudo-oxocarbons, X-ray diffraction, copper(II) complex, copper(I) complex, electrochemical behaviour.

Coordination Chemistry of trans-(NH3)2Pt(II) with Uracil Nucleobases. A Comparison with cis-(NH3)2Pt(II)

1990 ◽  
Vol 45 (6) ◽  
pp. 731-740 ◽  
Author(s):  
Iris Dieter ◽  
Bernhard Lippert ◽  
Helmut Schöllhon ◽  
Ulf Thewalt
Keyword(s):  
Oxidation Products ◽  
Orthorhombic Space Group ◽  
Monoclinic System ◽  
Space Group ◽  
X Ray ◽  
X Ray Crystallography ◽  
Cell Dimensions ◽  
Rare Tautomers ◽  
Cis Isomer ◽  
Heteronuclear Complex

Protonated and heteronuclear adducts as well as a series of Pt(IV) oxidation products derived from trans-a2PtL2 (a = NH3, NH2CH3, L = 1-methyluracil anion, C5H5N2O2, or uridine anion, C10HnN2O6) have been prepared and studied by spectroscopic methods and in two cases by X-ray crystallography. trans-(NH3)2Pt(C5H5N2O2)2Ag2(NO3)2H2O · H2O (7) crystallizes in the orthorhombic space group Pna21 with cell dimensions a = 13.206(6), b = 7.238(9), c = 22.051(10) Å, U = 2107.7 Å3, Z = 4. 7 forms a polymeric structure with PtAg2 entities linked via O(4) sites of the 1-methyluracilato ligands. Pt is coordinated through N(3), the Ag centers have a mixed O(2),O(4) coordination, trans,trans,trans-[(NH3)2Pt(OH)2(C5H6N2O2)2](NO3)2 (9) contains two N(3)-bound neutral 1-methyluracil ligands, hence rare tautomers of this model nucleobase. 9 crystallizes in the monoclinic system, space group P21/n with cell dimensions a = 7.098(1), b = 10.395(1), c = 13.295(2) Å, U = 980.4 Å3, Z = 2. While the chemistry leading to Pt(IV) oxidation products from trans-a.2PtL2 is similar to that of the cis-isomer, protonation as well as heteronuclear complex formation of trans-a2PtL2 is more difficult to accomplish than with the cis-isomer. This difference appears to be primarily of steric origin.

Synthesis, Crystal Structure And Spectroscopic Studies Of A Mixed Ligand Copper (Ii) Complex: Trans-Bis(Succinimidato)-Bis(Benzylamino)Cu(Ii)

2006 ◽  
Vol 61 (8) ◽  
pp. 979-982 ◽  
Author(s):  
Murat Taş ◽  
Hanife Saraçoğlu ◽  
Hümeyra Bati ◽  
Nezihe Çalışkan ◽  
Orhan Büyükgüngör
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Spectroscopic Studies ◽  
Mixed Ligand ◽  
Interplanar Angle ◽  
Space Group ◽  
Square Planar

The molecules of the title compound, [Cu(C11H13N2O2)2], lie across centres of inversion in space group P21/c and are linked by intermolecular N-H···O and C-H···O hydrogen bonds. The central Cu atom has a slightly distorted square-planar coordination comprised of four N atoms. Cu-N bond distances are 1.975(2) and 2.020(2) Å . The interplanar angle between the phenyl and succinimidato ring is 87.34(10)°

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