Author
Junnosuke Fujita
Bio: Junnosuke Fujita is an academic researcher. The author has contributed to research in topics: Infrared spectroscopy & Absorption (electromagnetic radiation). The author has an hindex of 3, co-authored 3 publications receiving 713 citations.
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TL;DR: The usual assignments of absorption bands due to products of CO and CO2 reactive adsorption on metal oxide surfaces are also critically reexamined in this paper, where carbonate, bicarbonate and formate ions, and of CO2 in metal complexes are reported.
751 citations
575 citations
TL;DR: In this paper, a normal co-ordinate treatment has been made for one complex ion of T h symmetry and for D 4 h symmetry on the basis of Urey-Bradley type potential and the bond stretching force constants for the various metal-oxygen bonds have been calculated.
416 citations
TL;DR: In this article, the spectra of twenty two metal-1:10-phenanthroline perchlorates together with the free ligand, its hydrate and perchlorate salt have been obtained in the region between 600 and 2000 cm −1 from Nujol mulls.
409 citations
TL;DR: In this article, the structures and vibrational frequencies of the acetate ion interacting with a metal ion (Na+, Mg2+, and Ca2+) in the unidentate, bidentate and bridging, and pseudobridging forms are studied by ab initio molecular orbital calculations.
Abstract: The structures and vibrational frequencies of the acetate ion interacting with a metal ion (Na+, Mg2+, and Ca2+) in the unidentate, bidentate, bridging, and pseudobridging forms are studied by ab initio molecular orbital calculations. Effects of a water molecule coordinating to either the acetate ion or the metal ion are also examined. The calculations are carried out by using the self-consistent reaction field method at the Hartree−Fock level with the 6-31+G** basis set. For the species interacting with a divalent metal cation, the lengths of the two CO bonds of the acetate ion are nearly equal in the bidentate form but are significantly different in the unidentate form. The frequency of the COO- antisymmetric stretch of the unidentate species is higher than that of the ionic species, which is in turn higher than that of the bidentate species. The reverse is the case for the COO- symmetric stretch. As a result, the frequency separations (Δνa-s) between the COO- antisymmetric and symmetric stretches for t...
408 citations