Synthesis and Characterization of Zinc(II) and Cadmium(II) Mixed Ligand Trichloroacetate Complexes

Mixed ligand, iso-structural zinc(II), [Zn(L1)2(L2)2] 1 and cadmium(II), [Cd(L1)2(L2)2] 2, (L1 = CCl3COO−, L2 = N,N,N′,N′-tetramethylethylenediamine (tmen)), trichloroacetate complexes have been prepared and characterized by elemental, spectroscopic (ir, nmr), thermogravimetry, molar conductivity, and X-ray studies in 2. The trichloroacetate acts as a monodentate and tmen ligand L2 functions as a bidentate ligand in both the complexes. The crystal structure of 2 is of monoclinic system, space group P21/n with a = 8.3302(19) Ǻ, b = 17.756(4) Ǻ, c = 18.619(4) Ǻ, β = 100.393(3)°, and V = 2708.8(10) Ǻ3, Z = 4. The geometry around the metal is distorted octahedral.

[1]  D. Saini,et al.  Synthesis, spectroscopic, and thermal analyses of binuclear mixed ligand Co(II) and Ni(II) complexes , 2011 .

[2]  Youngmee Kim,et al.  Poly[[bis[μ-1,2-bis(4-pyridyl)ethene]bis(trichloroacetato)cadmium(II)] monohydrate] , 2010, Acta crystallographica. Section E, Structure reports online.

[3]  K. Fromm,et al.  Polyether Adducts of d‐Block Metal Compounds as Starting Materials for New Cluster Compounds , 2010 .

[4]  G. Sheldrick.  A short history of SHELX. , 2008, Acta crystallographica. Section A, Foundations of crystallography.

[5]  B. Melai,et al.  Synthesis and reactivity of Haloacetato derivatives of iron(II) including the crystal and the molecular structure of [Fe(CF3COOH)2(micro-CF3COO)2]n. , 2007, Inorganic chemistry.

[6]  D. Vikić-Topić,et al.  Coordination modes of 3-hydroxypicolinic acid (OH-picH): Synthesis and characterization of cadmium(II) complexes: Crystal and molecular structures of [CdX(OH-pic)(OH-picH)(H2O)]2 X = Cl−, Br− , 2006 .

[7]  A. Morsali,et al.  Thermal and Structural Studies of a 1D Zinc(II) Coordination Polymer – [Zn(μ‐4,4′‐bipy)(H2O)4]n(CCl3COO)2n·(4,4′‐bipy)2n (4,4′‐bipy = 4,4′‐bipyridine), with Shorted Cl···Cl Interactions , 2006 .

[8]  A. Morsali,et al.  [Zn(phen)2(CX3COO)]+, X = H orCl; Influence of X on the Coordination Mode of the Carboxylate Group (phen = 1,10-Phenanthroline) , 2005 .

[9]  S. Mitra,et al.  Two novel Zn(II) helical chain polymers containing both bridging and terminal carboxylato groups , 2003 .

[10]  I. Pantenburg,et al.  Syntheses and crystal structures of bis(4-dimethylaminopyridine) group 12 trifluoroacetates — M(OCOCF3)2·2DMAP (M=Zn, Cd, Hg) , 2003 .

[11]  V. Mereacre,et al.  Synthesis and structure of heterotrinuclear carboxylates: [Fe2NiO(CH3COO)6(NC5H4-COOC2H5)3].3(CH3C≡N) and [Fe2NiO(CCl3COO)6(β-Pic)3].2(CH3C6H5) , 2003 .

[12]  D. Dell'amico,et al.  Synthesis, and crystal and molecular structures of the triflato and trifluoroacetato complexes of zinc, Zn(O3SCF3)2(DME)2 and [Zn(O2CCF3)2(DME)]n , 2002 .

[13]  D. A. Edwards,et al.  Aerosol-assisted chemical vapour deposition (AACVD) of silver films from triorganophosphine adducts of silver carboxylates, including the structure of [Ag(O2CC3F7)(PPh3)2] , 2002 .

[14]  H. Schmider,et al.  Syntheses, structures, and fluxionality of blue luminescent zinc(II) complexes: Zn(2,2',2"-tpa)Cl2, Zn(2,2',2"-tpa)2(O2CCF3)2, and Zn(2,2',3"-tpa)4(O2CCF3)2 (tpa = tripyridylamine). , 2000, Inorganic chemistry.

[15]  S. Mitra,et al.  Synthesis and structure of a heptacoordinated cadmium(II) complex , 1999 .

[16]  T. Mak,et al.  Syntheses and characterization of two monomeric zinc complexes containing aqua ligands , 1999 .

[17]  S. Mitra,et al.  Synthesis, characterization and structural studies of mono- and polynuclear complexes of zinc(II) with 1,10-phenanthroline, 2,2′-bipyridine and 4,4′-bipyridine , 1997 .

[18]  V. Petříček,et al.  Bis(thiourea-?S)bis(trichloroacetato-?O)zinc(II) monohydrate , 1994 .

[19]  K. Hagen,et al.  Molecular Recognition within a Rigid Host: Structural Changes Induced in μ-Carboxylato Dimetal(II) Complexes by Replacing Steric Repulsions with Hydrogen Bonds†‡ , 1993 .

[20]  H. Roesky,et al.  Syntheses and Structures of Three Mononuclear Coordination Compounds Containing Six- and Seven-Coordinated Manganese(II) Ions , 1993 .

[21]  A. Habtemariam,et al.  Reactions of sterically hindered organozinc and organocadmium compounds containing functional silicon centres. Crystal structures of Zn[C(SiMe3)2(SiMe2OCOCF3)]2 and Cd[C(SiMe3)2(SiMe2OMe)]2 , 1992 .

[22]  余秀芬,et al.  OXO—CENTERED HETEROTRINUCLEAR TRANSITION METAL CARBOXYLATE COMPLEXES 3，SYNTHESES AND X—RAY STRUCTURAL CHARACTERISTICS OF COMPOUNDS Fe2MO（O2CCCl3）6（THF）3 , 1990 .

[23]  J. Reedijk,et al.  The dinuclear unit μ-aqua-bis(μ-carboxylato)dimetal. X-ray structure and magnetism of cobalt and nickel(II) compounds containing bridging carboxylato groups and a bridging water molecule , 1987 .

[24]  S. García‐Granda,et al.  Structure of bis(2-methyl-1,2-propanediamine-N,N')bis(trichloroacetato-O)nickel(II), [Ni(C2Cl3O2)2(C4H12N2)2] , 1984 .

[25]  R. Doedens,et al.  A novel variation on a classical dimeric structure type. Preparation and structure of the metal-nitroxyl complex [Cu(O2CCCl3)2(Tempo)]2 , 1983 .

[26]  U. Turpeinen,et al.  The structure of μ‐aqua‐bis(μ‐trifluoroacetato‐O,O')‐bis[(N,N,N',N'‐tetramethylethylenediamine)(trifluoroacetato)nickel(II)] , 1982 .

[27]  Glen B. Deacon,et al.  Relationships between the carbon-oxygen stretching frequencies of carboxylato complexes and the type of carboxylate coordination , 1980 .

[28]  D. Cremer,et al.  General definition of ring puckering coordinates , 1975 .

[29]  George Turrell,et al.  Infrared and Raman Spectra of Crystals , 1972 .

[30]  W. Geary.  The use of conductivity measurements in organic solvents for the characterisation of coordination compounds , 1971 .

[31]  D. H. Brown,et al.  Anhydrous metal trifluoroacetates , 1968 .