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Cyclohexylethyl- and Hexamethyleneimine Nickel(II)dithiocarbamates with 1,6-Bis(diphenylphosphino)hexane

Pastorek R., Kameníček J., Husárek J., Pavlíček M., Šindelář Z., Žák Z.

Polish Journal of Chemistry

2003

Vol. 77 / nr 7

805-812

A binuclear diamagnetic Ni(II) dithiocarbamates with 1,6-bis(diphenylphosphino)hexane (dpph) as a bidentate bridging P,P-ligand of composition [Ni2(_-dpph)(hmidtc)2X2] (hmidtc = hexamethyleneiminedithiocarbamate, dtc = S2CN-, X = Cl, Br, I, ClO4, NCS); [Ni2(_-dpph)(cetdtc)2X2] (cetdtc = cyclohexylethyldithiocarbamate, X = Cl, Br, I, NCS) and also the mononuclear diamagnetic complex [Ni(cetdtc)(dpph)]ClO4_2H2O have been synthesized. The complexes have been studied by elemental analysis, IR and UV-VIS spectroscopy, thermal analysis, magnetochemical and conductivity measurements. X-ray structural analysis was solved for the [Ni2(_-dpph)(hmidtc)2Br2]_2CHCl3 and confirmed the presence of two NiS2PBr chromophores bonded by the P-donor atoms of 1,6-bis(diphenylphosphino)hexane.

Nickel(II)morpholinedithiocarbamate with Mixed P,P-Ligands

Pastorek R., Kameniček J., Šindelář Z., Žák Z.

Polish Journal of Chemistry

2001

Vol. 75, nr 3

363-369

Ni(II)morpholinedithiocarbamate complexes with P,P-ligands in the coordination sphere of composition [Ni(morphdtc)(P,P)]X and [Ni2(morphdtc)2X2(P,P)], resp. [(X = NCS-, ClO4 _, I-; P,P = 1,2-bis(diphenylphosphino)ethane (dppe), 1,4-bis(diphenylphosphino) butane (dppb), 1,6-bis(diphenylphosphino)hexane (dpph), 1,1_-bis(diphenylphosphino) ferrocene (dppf); morph = C4H8O; dtc = S2CN-)] have been isolated. These complexes have been characterized by elemental analysis, IR and UV-VIS spectroscopy, thermal analysis, magnetochemical and conductivity measurements. X-ray structural analysis of [Ni(morphdtc)(dppf)]ClO4_C2H5OH confirms the NiS2P2 chromophore with a slightly distorted square arrangement around central atom.