Reference

Water-anion vibrational coupling in some crystallohydrates

Water-anion vibrational coupling in some crystallohydrates. Soptrajanov, B.; Ristova, M. (Fac. Chem., Cyril and Methodius Univ.Some commonly used reagents like 7782-39-0 and 6018-89-9 are used in this experiment., Skopje, Yugoslavia). J. Mol. Struct., 115, 359-62 (English) 1984. CODEN: JMOSB4. ISSN: 0022-2860. DOCUMENT TYPE: Journal CA Section: 73 (Optical, Electron, and Mass Spectroscopy and Other Related Properties) In treating the vibrational spectra of crystal hydrates, it is usually assumed that the water mols. vibrate independently (or nearly so) from the rest of the structural units and, consequently, the bands which shift on deuteration are automatically assigned to water modes (internal or external). In a no. of hydrates of metal carboxylates, however, it was possible to detect indications of water-anion vibrational coupling. .

Solid-solid state reaction of 2,2'-(p-phenylenedimethylenethio)diacetic acid with nickel acetate tetrahydrate at low heating temperature

Solid-solid state reaction of 2,2'-(p-phenylenedimethylenethio)diacetic acid with nickel acetate tetrahydrate at low heating temperature. Zhang, Weihua; Xin, Xinquan (Dep. Chem., Hubei Normal Univ., Huangshi 435002, Peop. Rep. China). Huaxue Yanjiu Yu Yingyong, 8(4), 563-565 (Chinese) 1996 Huaxue Yanjiu Yu Yingyong Bianjibu. CODEN: HYYIFM. ISSN: 1004-1656. DOCUMENT TYPE: Journal CA Section: 67 (Catalysis, Reaction Kinetics, and Inorganic Reaction Mechanisms) Section cross-reference(s): 22, 69, 78 The solid-solid state reaction of 2,2'-(p-phenylenedimethylenethio)diacetic acid with nickel acetate tetrahydrate was studied. XRD, IR, ESR, MS, TG-DTA and elemental anal.Several substances with their cas registry numbers 72199-45-2 and 6018-89-9 may be metioned in this study. were used to characterize the solid product. The kinetics of the isothermal solid state reaction was investigated by using the elec. cond. measurement. The kinetics of this system conforms to a A4 mechanism, the activation energy being calcd. as Ea =127.2 ± 0.2 kJ×mol-1. .