32612-68-3Relevant academic research and scientific papers
Effects of Cyclopentadienyl and Phosphine Ligands on the Basicities and Nucleophilicities of Cp'Ir(CO)(PR3) Complexes
Wang, Dongmei,Angelici, Robert J.
, p. 1321 - 1331 (2008/10/09)
Basicities of the series of complexes CpIr(CO)(PR3) [PR3 = P(p-C6H4CF3)3 P(p-C6H4F)3, P(p-C6H4Cl)3, PPh3, P(p-C
Synthesis and Hammett constant correlation studies of new functionally substituted (η5-cyclopentadienyl)carbonyl(triphenylphosphine)iridium compounds
Blais, Matthew S.,Rausch, Marvin D.
, p. 3557 - 3563 (2008/10/08)
A series of functionally substituted (η5-cyclopentadienyl)carbonyl(triphenylphosphine)-iridium compounds of the type Ir(η5-C5H4R)(CO)(PPh3) (R = C(O)CH3, CH3, C(O)C6H5, CHO, SiMe3, NMe2, CO2CH3, CH2C6H5, CN, Cl) have been prepared from reactions of the corresponding substituted cyclopentadienylthallium, -sodium, or -lithium reagents with trans-chlorocarbonylbis(triphenylphosphine)iridium, or by reaction of these intermediates with chlorotricarbonyliridium and subsequent reaction with triphenylphosphine. The carbonyl stretching frequencies and the 31P NMR chemical shifts of these compounds have been correlated with various Hammett substituent constants. Greatest linearity was achieved with parameters that represent the sum of the inductive and resonance effects of the substituents.
Heats of protonation of transition-metal complexes: The effect of phosphine basicity on metal basicity in CpIr(CO)(PR3) and Fe(CO)3(PR3)2
Sowa Jr., John R.,Zanotti, Valerio,Facchin, Giacomo,Angelici, Robert J.
, p. 9185 - 9192 (2007/10/02)
Titration calorimetry has been used to determine the effects of phosphine ligand basicity on the heats of protonation (ΔHHM) of the metal in the CpIr(CO)(PR3) and Fe(CO)3(PR3)2complexes (PR3/sub
