Browsing by Author "T.N. Guru Row"
Now showing 1 - 1 of 1
- Results Per Page
- Sort Options
PublicationArticle Coordination of a mesogenic Schiff-base with MnII, CoII, NiII, CuII and ZnII: Synthesis, spectral studies and crystal structures(Elsevier Ltd, 2008) Angad Kumar Singh; Sanyucta Kumari; T.N. Guru Row; Jai Prakash; K. Ravi Kumar; B. Sridhar; T.R. RaoA novel mesogenic (nematic) Schiff-base, N,N′-di-4-(4′-pentyloxybenzoate)salicylidene diaminoethane, H2dpbsde (abbreviated as H2L5) was synthesized and its structure studied. The Schiff-base crystallizes in the non-centrosymmetric space group Pna21 with Z = 4, and the mesogenic isomorphous nickel and copper complexes, [NiL5]2 and [CuL5], in the centrosymmetric space group P21/c with Z = 4. The (L5)2- species coordinates to the metal ions through two phenolate oxygens and two azomethine nitrogens. Both the [NiL5]2 and [CuL5] complexes involve cis-MN2O2 planes; the former complex has a low-spin distorted square-pyramidal geometry with a Ni-Ni bonding of 3.337 Å and the latter, a square-planar geometry. © 2008 Elsevier Ltd. All rights reserved.