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Brückmann L, Tyrra W, Stucky S, et al. Novel air-stable and volatile bis(pyridylalkenolato)palladium(II) and -platinum(II) derivatives. Inorg Chem. 2011;51(1):536-42doi: 10.1021/ic201996r.
Brückmann, L., Tyrra, W., Stucky, S., & Mathur, S. (2012). Novel air-stable and volatile bis(pyridylalkenolato)palladium(II) and -platinum(II) derivatives. Inorganic chemistry, 51(1), 536-42. https://doi.org/10.1021/ic201996r
Brückmann, Lisa, et al. "Novel air-stable and volatile bis(pyridylalkenolato)palladium(II) and -platinum(II) derivatives." Inorganic chemistry vol. 51,1 (2012): 536-42. doi: https://doi.org/10.1021/ic201996r
Brückmann L, Tyrra W, Stucky S, Mathur S. Novel air-stable and volatile bis(pyridylalkenolato)palladium(II) and -platinum(II) derivatives. Inorg Chem. 2012 Jan 02;51(1):536-42. doi: 10.1021/ic201996r. Epub 2011 Dec 15. PMID: 22171636.
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Inorg Chem. 2012 Jan 02;51(1):536-42. doi: 10.1021/ic201996r. Epub 2011 Dec 15.

Novel air-stable and volatile bis(pyridylalkenolato)palladium(II) and -platinum(II) derivatives.

Inorganic chemistry

Lisa Brückmann, Wieland Tyrra, Stefan Stucky, Sanjay Mathur

Affiliations

  1. Inorganic and Materials Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, 50939 Cologne, Germany.

PMID: 22171636 DOI: 10.1021/ic201996r

Abstract

Six novel homoleptic palladium(II) and platinum(II) complexes of donor-substituted alkenol ligands [PyCHC(R)OH; Py = pyridine, R = CH(3), CF(3), C(2)F(5), C(3)F(7)] of the general formula M[PyCHC(R)O](2) (M = Pd, Pt) were synthesized by reacting the deprotonated ligands with PdCl(2) and K(2)PtCl(4), respectively. Molecular structures, revealed by single-crystal X-ray diffraction analyses, showed a square-planar arrangement of ligands around palladium and platinum centers, with the pyridine-ring nitrogen atoms situated in a mutually trans position. The monomeric nature of the compounds in the solution state was confirmed by multinuclear ((1)H, (13)C, and (19)F) NMR spectroscopy. Thermal decomposition profiles recorded under a nitrogen atmosphere suggested their potential as volatile precursors to palladium and platinum materials. The volatility was increased upon elongation of the perfluoroalkyl chain, which suppressed the intermolecular interactions, as is evident in crystal packings. The volatility of these compounds was attributed to bidentate chelation of the alkenol units and cooperativity among the electron-back-donating nitrogen atom and interplay of electron-withdrawing C(x)F(y) groups, resulting in an effective steric shielding of the metal atoms.

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