Abstract
A (phenylenediselenolato)cobalt complex dimer, [Co(η5-C5H5) (Se2C6H4)]2 (1), was synthesized by a reaction of carbonyl(η5-cyclopentadienyl)diiodocobalt(III) ([Co(η5-C5H5)I2(CO)]) with poly(o-diselenobenzene). The structure of 1, determined by single-crystal X-ray crystallography, was found to be located in the space group of P21/c (No. 14), with a = 9.3346(5) Å, b = 11.6477(9) Å, c = 10.2179(5) Å, β = 111.491(1)°, and Z = 2. Covalent Co-Se bonds bridge the metal centers. In solution, dimers and monomers coexist at equilibrium. The dissociation equilibrium constant of 1 in solution was evaluated by 1H NMR spectra at several temperatures between 20 and 80 °C. Dissociation enthalpies/entropies were found to be 50/110, 60/120, and 88 kJ mol-1/200 J K-1 mol-1 in dimethyl sulfoxide-d6, benzene-d6, and chloroform-d1, respectively.
| Original language | English |
|---|---|
| Pages (from-to) | 1952-1955 |
| Number of pages | 4 |
| Journal | Inorganic Chemistry |
| Volume | 42 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Mar 24 2003 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Physical and Theoretical Chemistry
- Inorganic Chemistry
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Synthesis, structure, and dissociation equilibrium of [Co(η5-C5H5) (Se2C6H4)]2, a novel metalladiselenolene complex. / Habe, Satoru; Yamada, Teppei; Nankawa, Takuya; Mizutani, Jun; Murata, Masaki; Nishihara, Hiroshi.
In: Inorganic Chemistry, Vol. 42, No. 6, 24.03.2003, p. 1952-1955.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Synthesis, structure, and dissociation equilibrium of [Co(η5-C5H5) (Se2C6H4)]2, a novel metalladiselenolene complex
AU - Habe, Satoru
AU - Yamada, Teppei
AU - Nankawa, Takuya
AU - Mizutani, Jun
AU - Murata, Masaki
AU - Nishihara, Hiroshi
PY - 2003/3/24
Y1 - 2003/3/24
N2 - A (phenylenediselenolato)cobalt complex dimer, [Co(η5-C5H5) (Se2C6H4)]2 (1), was synthesized by a reaction of carbonyl(η5-cyclopentadienyl)diiodocobalt(III) ([Co(η5-C5H5)I2(CO)]) with poly(o-diselenobenzene). The structure of 1, determined by single-crystal X-ray crystallography, was found to be located in the space group of P21/c (No. 14), with a = 9.3346(5) Å, b = 11.6477(9) Å, c = 10.2179(5) Å, β = 111.491(1)°, and Z = 2. Covalent Co-Se bonds bridge the metal centers. In solution, dimers and monomers coexist at equilibrium. The dissociation equilibrium constant of 1 in solution was evaluated by 1H NMR spectra at several temperatures between 20 and 80 °C. Dissociation enthalpies/entropies were found to be 50/110, 60/120, and 88 kJ mol-1/200 J K-1 mol-1 in dimethyl sulfoxide-d6, benzene-d6, and chloroform-d1, respectively.
AB - A (phenylenediselenolato)cobalt complex dimer, [Co(η5-C5H5) (Se2C6H4)]2 (1), was synthesized by a reaction of carbonyl(η5-cyclopentadienyl)diiodocobalt(III) ([Co(η5-C5H5)I2(CO)]) with poly(o-diselenobenzene). The structure of 1, determined by single-crystal X-ray crystallography, was found to be located in the space group of P21/c (No. 14), with a = 9.3346(5) Å, b = 11.6477(9) Å, c = 10.2179(5) Å, β = 111.491(1)°, and Z = 2. Covalent Co-Se bonds bridge the metal centers. In solution, dimers and monomers coexist at equilibrium. The dissociation equilibrium constant of 1 in solution was evaluated by 1H NMR spectra at several temperatures between 20 and 80 °C. Dissociation enthalpies/entropies were found to be 50/110, 60/120, and 88 kJ mol-1/200 J K-1 mol-1 in dimethyl sulfoxide-d6, benzene-d6, and chloroform-d1, respectively.
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U2 - 10.1021/ic025865n
DO - 10.1021/ic025865n
M3 - Article
C2 - 12639129
AN - SCOPUS:0037464317
VL - 42
SP - 1952
EP - 1955
JO - Inorganic Chemistry
JF - Inorganic Chemistry
SN - 0020-1669
IS - 6
ER -