title: Structural and spectral studies of palladium(II) and platinum(II) complexes derived from N,N,N,N-tetradentate macrocyclic ligands.
abstract: Palladium(II) and platinum(II) complexes having the general composition [M(L)] X2 (where M=Pd(II) and Pt(II), L=3,4,12,13-tetraphenyl-2,5,11,14,19,20-hexaaza tricyclo [13.3.1.1.(6-10)] cosa-1(19), 2,4,6,8,10,(20),11,13,15,17-decaene (L1); 3,4,13,14-tetraphenyl-2,5,12,15-tetraaza tricyclo [11,0,0,(6-11)] cosa-1(16),2,4,7,9,6(11),12,14,17, 19-decaene (L2); 2,3,8,9-tetraphenyl-1,4,7,10-tetraaza cyclododeca-1,3,7,9-tetraene (L3) and X=Cl(-)) have been synthesized. The ligands were characterized on the basis of elemental analyses, IR, 1H NMR and EI mass spectral studies while that of the complexes were characterized on the basis of elemental analyses, molar conductance measurements, magnetic susceptibility measurements, IR, and electronic spectral techniques. All the complexes were found to be diamagnetic. The structures consist of monomeric units in which the Pd(II) and Pt(II) atoms exhibit square planar geometry.
authors.affiliation: Department of Chemistry, Zakir Husain College (University of Delhi), J.L. Nehru Marg, New Delhi 110002, India. schandra_00@yahoo.com
authors.forename: Sulekh
authors.initials: S
authors.lastname: Chandra
authors.forename: Smriti
authors.initials: S
authors.lastname: Raizada
authors.forename: Soni
authors.initials: S
authors.lastname: Rani
mesh_terms: D008024:Ligands; D047028:Macrocyclic Compounds / Q000737:chemistry*; D013058:Mass Spectrometry; D015394:Molecular Structure; D010165:Palladium / Q000737:chemistry*; D017671:Platinum Compounds / Q000737:chemistry*; D013057:Spectrum Analysis
chemical_list: D008024:Ligands; D047028:Macrocyclic Compounds; D017671:Platinum Compounds; D010165:Palladium