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Dinuclear Rh(ii) pyrazolates as CVD precursors for rhodium thin films†
W. Jeffrey McCarty,Xiaoping Yang,Lauren J. DePue Anderson,Richard A. Jones
Dalton Transactions Pub Date : 11/08/2011 00:00:00 , DOI:10.1039/C1DT11649E
Abstract

New dinuclear rhodium(II) pyrazolate (Pz) complexes of formula Rh2(3-R,5-R′Pz)4·2L (R = R′ = CF3, L = H2O (1), CH3CN (2)) and Rh2(3-R,5-R′Pz)4 (R = R′ = tBu (3); R = CF3, R′ = tBu (4)) have been synthesized from the interaction of the lithium salt of the corresponding pyrazole with Rh2(OAc)4 in diethyl ether. The complexes were characterized by X-ray crystallography and spectroscopic methods. They were further evaluated as precursors for the chemical vapor deposition (CVD) of Rh thin films using H2 as the carrier gas. The resulting films were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS).

Graphical abstract: Dinuclear Rh(ii) pyrazolates as CVD precursors for rhodium thin films
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