caa a22 4500 465775608 CHVBK 20180323111941.0 cr unu---uuuuu 170327e19900601xx s 000 0 eng 10.1007/BF01038381 doi (NATIONALLICENCE)springer-10.1007/BF01038381 Transition metal complexes of potassium dihydridobis-, hydridotris- and tetrakis-(thiophenolyl)borate anions [Elektronische Daten] [Saivid Zaidi, Mohd Zahoor, Khwaja Siddiqi] Summary: The three new potential chelating ligands dihydridobis-, hydridotris- and tetrakis-(thiophenolyl)borate anions, and their chelates with first row transition metals have been synthesised. The divalent and trivalent metal ions form complexes in 1∶2 and 1∶3 (metal:ligand) ratios respectively. The number of ligands coordinated correspond to the number of anions replaced in the metal salis. The compounds were characterized by elemental analysis, i.r. spectra, magnetic susceptibility measurements and electronic spectral studies. The CrIII and FeIII complexes of dihydridobis- and hydridotris-(thiophenolyl)borates appear to be octahedral, and those of CuII are proposed to be square planar. Tetrahedral geometry is suggested for the MnII, CoII and NiII complexes. The tetrakis-(thiophenolyl)borate yielded octahedral complexes with all the metal ions except for CuII which is square planar. The ligand field parameters 10Dq, B and β have also been calculated wherever possible. The ligands may be placed in the vicinity of EDTA in the nephelauxetic series. Chapman and Hall Ltd., 1990 Zaidi Saivid Department of Chemistry, Aligarh Muslim University, 202002, Aligarh, India aut Zahoor Mohd Department of Chemistry, Aligarh Muslim University, 202002, Aligarh, India aut Siddiqi Khwaja Department of Chemistry, Aligarh Muslim University, 202002, Aligarh, India aut Transition Metal Chemistry Kluwer Academic Publishers 15/3(1990-06-01), 231-235 0340-4285 15:3<231 1990 15 11243 https://doi.org/10.1007/BF01038381 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01038381 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zaidi Saivid Department of Chemistry, Aligarh Muslim University, 202002, Aligarh, India aut NATIONALLICENCE 700 1- Zahoor Mohd Department of Chemistry, Aligarh Muslim University, 202002, Aligarh, India aut NATIONALLICENCE 700 1- Siddiqi Khwaja Department of Chemistry, Aligarh Muslim University, 202002, Aligarh, India aut NATIONALLICENCE 773 0- Transition Metal Chemistry Kluwer Academic Publishers 15/3(1990-06-01), 231-235 0340-4285 15:3<231 1990 15 11243 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer