Abstract
The stabilities and the heats of formation of silver(I) tributylphosphine, tricyclohexylphosphine, dicyclohexylphosphine, and tributylstibine complexes have been determined in pyridine, by means of potentiometric and calorimetric measurements. Three mononuclear complexes are formed with tributylphosphine, while only two mononuclear complexes are formed with the other ligands, within the ranges of concentration available. All complexes are formed in strongly exothermic reactions, while the entropy changes are negative. The stabilities of the silver(I) phosphine complexes show a strong correlation with some physical parameters of the ligands, such as the dipole moments, and the acid constants in aqueous solution, and the electronic parameters, v, determtned IR-spectroscopically in the Ni(CO) 3L complexes, L=phosphine or phosphite, in dichloromethane. The stabilities of the trialkylphosphine complexes are higher than the triphenylphosphine complexes, and the stabilities of alkylphosphines are in the order (primary) < secondary < tertiary phosphines.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
