Homoleptic cerium tris(dialkylamido)imidophosphorane guanidinate complexes

Aguirre Quintana, Luis M.; Jiang, Ningxin; Bacsa, John; La Pierre, Henry S.

doi:10.1039/d0dt03472j

Homoleptic cerium tris(dialkylamido)imidophosphorane guanidinate complexes

Journal Article · Wed Oct 14 00:00:00 EDT 2020 · Dalton Transactions

DOI:https://doi.org/10.1039/d0dt03472j· OSTI ID:1853167

^[1]; ^[2]; Bacsa, John ^[2]; ^[2]

Georgia Institute of Technology, Atlanta, GA (United States); OSTI
Georgia Institute of Technology, Atlanta, GA (United States)

We report the synthesis of a new potassium tris(piperdino)imidophosphorane N,N'-dicyclohexylguanidinate, K[^CyGNP(pip)₃], and describe the synthesis and characterization of the tris-homoleptic compounds, [Ce(^CyGNP(pip)₃)₃], 1-Ce, and [Ce(^CyGNP(pip)₃)₃][BPh₄], 2-Ce. The latter is an unusual cationic tetravalent cerium complex. Cyclic voltammetry studies of 1-Ce and 2-Ce revealed E_pc potentials of -1.56 V and -1.81 V, and E_pa potentials of -0.78 V and -0.66 V (200 mV s^-1; THF, vs. Fc^0/+), respectively. Compounds 1-Ce and 2-Ce were studied by L₃-edge X-ray absorption near-edge spectroscopy (XANES), and the fit of the spectrum of 2-Ce revealed a white-line multiplet with an n_f value of 0.50(2).

View Accepted Manuscript (DOE)

Research Organization:: Georgia Institute of Technology, Atlanta, GA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

Grant/Contract Number:: SC0019385

OSTI ID:: 1853167

Alternate ID(s):: OSTI ID: 1678784

Journal Information:: Dalton Transactions, Journal Name: Dalton Transactions Journal Issue: 42 Vol. 49; ISSN 1477-9226

Publisher:: Royal Society of ChemistryCopyright Statement

Country of Publication:: United States

Language:: English

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Homoleptic cerium tris(dialkylamido)imidophosphorane guanidinate complexes

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