The State of Cu2+ Ions in Concentrated Aqueous Ammonia Solutions of Copper Nitrate Full article
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Russian Journal of Inorganic Chemistry
ISSN: 0036-0236 , E-ISSN: 1531-8613 |
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| Output data | Year: 2012, Volume: 57, Number: 9, Pages: 1285-1290 Pages count : 6 DOI: 10.1134/S0036023612090033 | ||
| Tags | DPPH; Equatorial Plane; Ammonia Molecule; Aqueous Ammonia Solution; Electronic Absorption Spectroscopy | ||
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Abstract:
Stabilization of Cu2+ ions in concentrated aqueous ammonia solutions of copper nitrate in a wide range of ammonium ion concentrations has been studied by EPR and electronic absorption spectroscopy. Three types of Cu2+ associates with different types of orbital ordering have been identified. The ammonium ion concentration in a solution has a decisive effect on the type of orbital ordering of Cu2+ ions in associates. In all cases, Cu2+ ordering in associates is caused by the existence of bridging OH groups in the axial and equatorial positions of [Cu(NH3) n (H2O)6 − n ]2+ complexes (n < 6). At a high concentration of ammonium ions, weakly bound associates of tetramminecopper with the dx2−y2 ground state are formed. In solutions with low ammonium concentrations, bulky associates with the dy2 and dx2−z2 ground states and associates of Cu2+ ions with the dx2−y2 ground state with hydroxyl groups in the equatorial plane and axial water molecules are formed.
Cite:
Anufrienko V.F.
, Shutilov R.A.
, Zenkovets G.A.
, Gavrilov V.Y.
, Vasenin N.T.
, Shubin A.A.
, Larina T.V.
, Zhuzhgov A.V.
, Ismagilov Z.R.
, Parmon V.N.
The State of Cu2+ Ions in Concentrated Aqueous Ammonia Solutions of Copper Nitrate
Russian Journal of Inorganic Chemistry. 2012. V.57. N9. P.1285-1290. DOI: 10.1134/S0036023612090033 WOS Scopus РИНЦ ANCAN OpenAlex
The State of Cu2+ Ions in Concentrated Aqueous Ammonia Solutions of Copper Nitrate
Russian Journal of Inorganic Chemistry. 2012. V.57. N9. P.1285-1290. DOI: 10.1134/S0036023612090033 WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Ануфриенко В.Ф.
, Шутилов Р.А.
, Зенковец Г.А.
, Гаврилов В.Ю.
, Васенин Н.Т.
, Шубин А.А.
, Ларина Т.В.
, Жужгов А.В.
, Исмагилов З.Р.
, Пармон В.Н.
Состояние ионов Cu2+ в концентрированных водно-аммиачных растворах азотнокислой меди
Журнал неорганической химии. 2012. Т.57. №9. С.1368-1373. РИНЦ
Состояние ионов Cu2+ в концентрированных водно-аммиачных растворах азотнокислой меди
Журнал неорганической химии. 2012. Т.57. №9. С.1368-1373. РИНЦ
Dates:
| Submitted: | Sep 15, 2011 |
| Published print: | Sep 1, 2012 |
| Published online: | Sep 6, 2012 |
Identifiers:
| Web of science: | WOS:000308427300019 |
| Scopus: | 2-s2.0-84869010799 |
| Elibrary: | 18754081 |
| Chemical Abstracts: | 2012:1303436 |
| Chemical Abstracts (print): | 158:284317 |
| OpenAlex: | W2169749213 |