TY - JOUR
T1 - Synthesis and characterisation of platinum(II) complexes containing heterobidentate S,N-chelating ligands: X-ray crystal structure of cis-[Pt{SPPh2N=C(Me)NH-S,N}(PMe2Ph)2]Cl
AU - Bhattacharyya, P
AU - Slawin, Alexandra Martha Zoya
AU - Woollins, John Derek
PY - 2000/4/15
Y1 - 2000/4/15
N2 - Deprotonation of the terminal amino group in the N-thiophosphoryl compounds Me2P(S)N=C(NH2)(2) (HL1), Ph2P(S)N=C(Me)NH2 (HL2) or Ph2P(S)N=C(NH2)(2) (HL3) using potassium tert butoxide in thf, followed by treatment with cis-[PtCl2(PR3)(2)] (PR3=PMe2Ph or 1/2dppe) generates monocationic complexes cis-[Pt(L-n-S,N) (PR3)(2)]Cl (1-6), which have been characterised by P-31(H-1) NMR, IR and FAB(+) mass spectroscopies, and for cis-[Pt(L-2-S,N) (PMe2Ph)(2)]Cl (2) by single crystal X-ray diffraction. The molecular structure of 2 reveals bidentate coordination of the platinum(II) centre by a bidentate S,N-chelating [Ph2P(S)N=C(Me)NH](-) anion, giving a six-membered platinacycle, which adopts a chaise-longue conformation, with a strong hydrogen-bonding interaction between the chloride counterion and the nitrogen-bound proton. (C) 2000 Elsevier Science Ltd All rights reserved.
AB - Deprotonation of the terminal amino group in the N-thiophosphoryl compounds Me2P(S)N=C(NH2)(2) (HL1), Ph2P(S)N=C(Me)NH2 (HL2) or Ph2P(S)N=C(NH2)(2) (HL3) using potassium tert butoxide in thf, followed by treatment with cis-[PtCl2(PR3)(2)] (PR3=PMe2Ph or 1/2dppe) generates monocationic complexes cis-[Pt(L-n-S,N) (PR3)(2)]Cl (1-6), which have been characterised by P-31(H-1) NMR, IR and FAB(+) mass spectroscopies, and for cis-[Pt(L-2-S,N) (PMe2Ph)(2)]Cl (2) by single crystal X-ray diffraction. The molecular structure of 2 reveals bidentate coordination of the platinum(II) centre by a bidentate S,N-chelating [Ph2P(S)N=C(Me)NH](-) anion, giving a six-membered platinacycle, which adopts a chaise-longue conformation, with a strong hydrogen-bonding interaction between the chloride counterion and the nitrogen-bound proton. (C) 2000 Elsevier Science Ltd All rights reserved.
KW - thiophosphoryl guanidines
KW - platinum complexes
KW - crystal structures
KW - PR3 = PME3
KW - 1/2PH2PCH2CH2PPH2
KW - PME2PH
KW - PPH3
KW - PET3
UR - http://www.scopus.com/inward/record.url?scp=0034654956&partnerID=8YFLogxK
M3 - Article
SN - 0277-5387
VL - 19
SP - 809
EP - 812
JO - Polyhedron
JF - Polyhedron
ER -