X-ray crystal structure and spectral study of [Cu(C10H8N2)2(C6H4COSO2N)]· (C6H4COSO2N)·3H2O

Photoacoustic spectra of o-sulphobenzoimide transition metal complexes

The d-d transition spectra of Cu(TTA)2 and Cu2(sacch)4(Im)4 complexes crystals have been determined. Using the crystal structure data, their d-d transition energy levels are calculated by the program which we used for the calculation of field theory. The calculated values are in good accordance with the experimental results. Compared to the copper(II) complexes in various coordination environments, their d-d transition spectra have an evident difference.

The d-d Transition Spectra of Copper (II) Complexes in Different Coordination Environment. Study on Cu(TTA)2 and Cu2(sacch)4(Im)4

Following a recent upsurge of interest in saccharin complexes system, we have synthesized several saccharin mixed ligand complexes and attempt to discussed them. In this work, the d-d transition spectrum of the title compound crystal have been determined and it is explained with scaling radial theory of non-free ions which was proposed by our laboratory. However, the absorption position of d-d transitions of the title compound are at 10474, 12435, 13814, 15627 cm−1. With data in the work of Brown and Shannon, Cu(II)-N bonds of the title compound are discussed and it shows that the coordination ability of saccharin in to copper(II) ion is weaker than that of 2,2′-bipyridine, but more stronger than that of a water molecule.

The d-d transition spectrum and Cu(II)-N bonds of [Cu(2,2′-bipyridine)2 (saccharin)] (saccharin) · 3 H2O

Electronic absorption spectrum of [Fe(C7H4NO3S)2(H2O)4].2H2O crystal

The electronic absorption spectrum and ESR spectrum of the crystal of the title compound [Cu(C7H4NO3S)2(H2O)4] · 2 H2O, are measured. The experimental results are discussed quantitatively by using the ligand field theory and the radial wave function of non-free Cu(II). The electronic structure of the compound is in agreement with its crystal structure.

Electronic Structure of [Cu(C7H4NO3S)2(H2O)4] · 2H2O Crystal

Electronic absorption spectrum of [Ni(C7H4NO3S)2(H2O)4] · 2 H2O crystal

Mesure des spectres de transition d-d du complexe Ca [Co(EDTA)]•5H 2 O, afin d'etudier la structure electronique des composes de coordination. Explication des spectres par une theorie de champ de coordinat. Bon accord entre les resultats experimentaux et calcules

Pan Guoqiang

Papers

Electronic Structure of [Cu(C7H4NO3S)2(H2O)4] · 2H2O Crystal

Electronic absorption spectrum of [Ni(C7H4NO3S)2(H2O)4] · 2 H2O crystal

Measurement and explanation of the d-d-transition spectra of CaM (II)—EDTA crystal. 1. Ca[Co(EDTA)] · 5 H2O