Neutral and cationic complexes of general formulae (LL)MCl2 (M = Pd, (LL) = CH2(pz)2 (1); CH2(3,5-Me2pz)2 (2); (CH3)2C(pz)2 (3); M = Pt, (LL) = CH2(pz)2 (4); CH2(3,5-Me2pz)2 (5) and (LL)2M]2+ (M = Pd, (LL) = CH2(pz)2 (6); CH2(3,5-Me2pz)2 (7); (CH3)2C(pz)2 (8); M = Pt, (LL) = CH2(pz)2 (9); CH2(3,5-Me2pz)2 (10) have been prepared and characterized by IR and 1H NMR spectroscopy. The structures of 3 and 6 have been determined by X-ray diffraction; in both complexes the bis-(pyrazolyl)alkanes act as chelating ligands but the coordination around the palladium atom in the complex 6 is strictly square-planar whereas in 3 it is a slightly distorted towards pyramidal, with a significant Pd⋯HC agostic interaction. The six-membered rings in both the complexes adopt a boat-type conformations.

PREPARATION AND CHARACTERIZATION OF PALLADIUM(II) AND PLATINUM(II) COMPLEXES WITH BIS(PYRAZOLYL)ALKANES - CRYSTAL AND MOLECULAR-STRUCTURES OF [PD(CH2(PZ)2)2][BF4]2 AND OF [PDCL2((CH3)2C(PZ)2)] (PZH=PYRAZOLE), A NEW EXAMPLE OF A PD=H-C AGOSTIC INTERACTION / G. MINGHETTI, M. CINELLU, A. BANDINI, G. BANDITELLI, F. DEMARTIN, M. MANASSERO. - In: JOURNAL OF ORGANOMETALLIC CHEMISTRY. - ISSN 0022-328X. - 315:3(1986), pp. 387-399.

PREPARATION AND CHARACTERIZATION OF PALLADIUM(II) AND PLATINUM(II) COMPLEXES WITH BIS(PYRAZOLYL)ALKANES - CRYSTAL AND MOLECULAR-STRUCTURES OF [PD(CH2(PZ)2)2][BF4]2 AND OF [PDCL2((CH3)2C(PZ)2)] (PZH=PYRAZOLE), A NEW EXAMPLE OF A PD=H-C AGOSTIC INTERACTION

A. BANDINI;G. BANDITELLI;F. DEMARTIN
Penultimo
;
M. MANASSERO
Ultimo
1986

Abstract

Neutral and cationic complexes of general formulae (LL)MCl2 (M = Pd, (LL) = CH2(pz)2 (1); CH2(3,5-Me2pz)2 (2); (CH3)2C(pz)2 (3); M = Pt, (LL) = CH2(pz)2 (4); CH2(3,5-Me2pz)2 (5) and (LL)2M]2+ (M = Pd, (LL) = CH2(pz)2 (6); CH2(3,5-Me2pz)2 (7); (CH3)2C(pz)2 (8); M = Pt, (LL) = CH2(pz)2 (9); CH2(3,5-Me2pz)2 (10) have been prepared and characterized by IR and 1H NMR spectroscopy. The structures of 3 and 6 have been determined by X-ray diffraction; in both complexes the bis-(pyrazolyl)alkanes act as chelating ligands but the coordination around the palladium atom in the complex 6 is strictly square-planar whereas in 3 it is a slightly distorted towards pyramidal, with a significant Pd⋯HC agostic interaction. The six-membered rings in both the complexes adopt a boat-type conformations.
Settore CHIM/03 - Chimica Generale e Inorganica
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/196837
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