Reversible interaction of dioxygen with dibromo(triethylphosphine)manganese
作者:H. D. Burkett、S. D. Worley
DOI:10.1021/ja00198a002
日期:1989.8
The reversible interaction of dioxygen with a solid-state MnPEtsub 3}Brsub 2} film at minus}30degree}C has been observed. Infrared spectroscopic evidence and isotopic labeling studies have shown that the reversible dioxygen species formed is of the side-on peroxo variety. This work represents the first unambiguous spectroscopic observation of the reversible interaction of dioxygen with solid-state
evolution. These results indicate that the iron complexes act as the true homogeneous catalyst for wateroxidation by CAN at low pHs. In contrast, light-driven wateroxidation using [Ru(bpy)3]2+ (bpy = 2,2′-bipyridine) as a photosensitizer and S2O82– as a sacrificial electron acceptor was catalyzed by iron hydroxide nanoparticles derived from the iron complexes under basic conditions as the result of the
作者:Fernando Bozoglian、Sophie Romain、Mehmed Z. Ertem、Tanya K. Todorova、Cristina Sens、Joaquim Mola、Montserrat Rodríguez、Isabel Romero、Jordi Benet-Buchholz、Xavier Fontrodona、Christopher J. Cramer、Laura Gagliardi、Antoni Llobet
DOI:10.1021/ja9036127
日期:2009.10.28
A thorough characterization of the Ru-Hbpp (in,in-[Ru(II)(trpy)(H(2)O)](2)(mu-bpp)}(3+) (trpy is 2,2':6',2''-terpyridine, bpp is bis(2-pyridyl)-3,5-pyrazolate)) water oxidation catalyst has been carried out employing structural (single crystal X-ray), spectroscopic (UV-vis and NMR), kinetic, and electrochemical (cyclic voltammetry) analyses. The latter reveals the existence of five different oxidation
Infrared Spectrum of Hg(OH)<sub>2</sub> in Solid Neon and Argon
作者:Xuefeng Wang、Lester Andrews
DOI:10.1021/ic048673w
日期:2005.1.1
Mercury(II) hydroxide molecules have been prepared upon mercury arc lamp irradiation of Hg, H(2), and O(2) mixtures in solid neon and argon. The strongest three infrared absorptions are identified through isotopic substitution (D(2), HD, (18)O(2), (16)O(18)O) and comparison to frequencies from DFT calculations. The isolated Hg(OH)(2) molecule is stable and has a linear O-Hg-O linkage in a C(2) structure
Electronic tuning of β-diketiminate ligands with fluorinated substituents: effects on the O<sub>2</sub>-reactivity of mononuclear Cu(<scp>i</scp>) complexes
作者:Lyndal M. R. Hill、Benjamin F. Gherman、Nermeen W. Aboelella、Christopher J. Cramer、William B. Tolman
DOI:10.1039/b609939d
日期:——
Copper(i) complexes with the beta-diketiminate ligands HCC(R)N(Dipp)}C(R')N(Dipp)}(-) (Dipp = C(6)H(3)(i)Pr(2-)2,6; L(1), R = CF(3), R' = CH(3); L(2), R = R' = CF(3)) have been isolated and fully characterized. On the basis of X-ray structural comparisons with the previously reported complex LCu(CH(3)CN) (L = HCC(CH(3))N(Dipp)}(2)(-)), the ligand environments at the copper centers in the analogous