Some unusual phase transitions of nickel(II) diamine complexes.
スポンサーリンク
概要
- 論文の詳細を見る
[NiX<SUB>2</SUB>(tn)<SUB>2</SUB>], (tn=1,3-propanediamine; X<SUB>2</SUB>=Br<SUB>2</SUB>, SO<SUB>4</SUB>, or SeO<SUB>4</SUB>) undergoes phase transitions upon heating and reverts to their original structure upon cooling. These transitions have been investigated by differential scanning calorimetry and infrared spectroscopy. Earlier, we reported the thermally induced phase transitions of nickel(II) diamine complexes. Most of these phase transitions are time dependent reversible type and the extent of reversibility are found to be catalyzed by humid atmosphere. [Ni(tn)<SUB>3</SUB>]X<SUB>2</SUB> and [NiX<SUB>2</SUB>(tn)<SUB>2</SUB>]·H<SUB>2</SUB>O (X<SUB>2</SUB>=Cl<SUB>2</SUB>, Br<SUB>2</SUB>, SO<SUB>4</SUB> etc.) were found to decompose through bis and monodiamine steps. We isolated and characterized all the possible intermediates. But we did not carry out thermal studies of these intermediates from the room temperature. This communication reports some new and interesting reversible phase transitions of [NiX<SUB>2</SUB>(tn)<SUB>2</SUB>] (X<SUB>2</SUB>=Br<SUB>2</SUB>, SO<SUB>4</SUB>, or SeO<SUB>4</SUB>).
- 公益社団法人 日本化学会の論文
著者
-
Chaudhuri Nirmalendu
Department Of Inorganic Chemistry Indian Association For The Cultivation Of Science.
-
Roy Sukumar
Department of Inorganic Chemistry, Indian Association for the Cultivation of Science
-
De Goutam
Department of Chemistry, Faculty of Science, Kanazawa University
関連論文
- Preparation, Characterization, and Solid State Thermal Studies of Nickel(II) Squarate Complexes of 1,2-Ethanediamine and Its Derivatives
- Thermal studies of 1,2-propanediamine complexes of zinc(II) and cadmium(II) in the solid phase.
- Thermal investigation of nickel(II) diamine complexes in solid state.
- Some unusual phase transitions of nickel(II) diamine complexes.
- Cis-to-trans isomerization of bis(diamine)bis(isothiocyanato)chromium(III) thiocyanate in the solid state.