TY - JOUR
T1 - 1,2-Bis(diphenylphosphino)ethane nickel(ii) O,O′-dialkyldithiophosphates as potential precursors for nickel sulfides
AU - Yadav, Reena
AU - Singh, Ashish Kumar
AU - Waghadkar, Yogesh
AU - Kociok-Kohn, Gabriele
AU - Kumar, Abhinav
AU - Chauhan, Ratna
AU - Rane, Sunit
AU - Gosavi, Suresh
PY - 2017/2/7
Y1 - 2017/2/7
N2 - In this work, three heteroleptic Ni(ii)dppe dithiophosphate complexes, [Ni{S2P(OC2H5)2}(dppe)]B(C6H5)4 (1), [Ni{S2P(OCH(CH3)2)2}(dppe)]PF6 (2) and [Ni{S2P(OCH(CH3)2)2}(dppe)]B(C6H5)4 (3) (dppe=1,2-bis(diphenylphosphino)ethane), have been synthesized and characterized by analytical and spectroscopic techniques (microanalysis, IR, UV-Vis,1H,13C and31P NMR spectroscopy) as well as single crystal X-ray crystallography. The crystal structures of all complexes displayed a distorted square planar geometry around the Ni(ii) center bonded through two sulfur atoms of the dithiophosphate ligand and two phosphorus atoms of dppe. The TGA results indicated that all three compounds display loss of solvents at the outset and decompose to Ni-S phase systems and hence may act as potential precursors for nickel sulfides. Investigations indicated that the bulkiness of counteranions as well as the alkyl fragment of the dithiophosphate ligands do not have any effect on the morphologies of as-synthesized nickel sulfides.
AB - In this work, three heteroleptic Ni(ii)dppe dithiophosphate complexes, [Ni{S2P(OC2H5)2}(dppe)]B(C6H5)4 (1), [Ni{S2P(OCH(CH3)2)2}(dppe)]PF6 (2) and [Ni{S2P(OCH(CH3)2)2}(dppe)]B(C6H5)4 (3) (dppe=1,2-bis(diphenylphosphino)ethane), have been synthesized and characterized by analytical and spectroscopic techniques (microanalysis, IR, UV-Vis,1H,13C and31P NMR spectroscopy) as well as single crystal X-ray crystallography. The crystal structures of all complexes displayed a distorted square planar geometry around the Ni(ii) center bonded through two sulfur atoms of the dithiophosphate ligand and two phosphorus atoms of dppe. The TGA results indicated that all three compounds display loss of solvents at the outset and decompose to Ni-S phase systems and hence may act as potential precursors for nickel sulfides. Investigations indicated that the bulkiness of counteranions as well as the alkyl fragment of the dithiophosphate ligands do not have any effect on the morphologies of as-synthesized nickel sulfides.
UR - http://www.scopus.com/inward/record.url?scp=85010953530&partnerID=8YFLogxK
UR - http://dx.doi.org/10.1039/c6nj03186b
U2 - 10.1039/c6nj03186b
DO - 10.1039/c6nj03186b
M3 - Article
AN - SCOPUS:85010953530
VL - 41
SP - 1327
EP - 1333
JO - New Journal of Chemistry
JF - New Journal of Chemistry
SN - 1144-0546
IS - 3
ER -