Reactivity studies on [Cp′MnX(thf)]2: manganese amide and polyhydride synthesis
Reactivity studies on [Cp′MnX(thf)]2: manganese amide and polyhydride synthesis
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[Cpâ²MnX(thf)]2 的反应性研究:锰酰胺和聚氢化物的合成
DOI:
10.1039/c2sc20737k
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发表时间:
2012
期刊:
影响因子:
8.4
通讯作者:
M. D. Walter
中科院分区:
文献类型:
--
作者:
M. Maekawa;M. Römelt;C. G. Danilliuc;P. G. Jones;P. S. White;F. Neese;M. D. Walter
The sterically encumbered 1,2,4-(Me3C)3C5H2 (Cp′) ligand allows the synthesis of stable high spin mono(cyclopentadienyl) manganese complexes [Cp′MnX(thf)]2 (X = Cl, Br, I; 1-X). Thermal stabilities of 1-X toward ligand redistribution to [Cp2′Mn] (2) and MnX2 depend on the bridging halide ligand. The kinetic stability of 1-I in solution even at elevated temperatures is noteworthy. Complexes 1 are useful starting materials for further functionalizations. Metathesis of 1-Cl with [LiN(SiMe3)2(OEt2)]2 yields the 13 valence-electron (VE) complex, [Cp′MnN(SiMe3)2] (3), while the manganese polyhydride cluster, [{Cp′Mn}4{MnH6}], was formed in the reaction of 1-I and KHBEt3. The 17 VE [MnH6]4− core of 4 is effectively shielded by four high spin [Cp′Mn]+ units. Magnetic susceptibility studies on 4 suggest weak electron exchange coupling between the spin carriers, but the spin state of the central [MnH6]4− fragment remained ambiguous. Therefore, the electronic structure of 4 was also analyzed by broken symmetry (BS) DFT calculations, which provided strong evidence for a low spin [MnH6]4− unit in agreement with previous spectrochemical studies performed on [FeH6]4−.
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影响因子:
1.7
作者:
Y. Nekrasov;D. V. Zverev;A. I. Belokon'
通讯作者:
A. I. Belokon'
影响因子:
15
作者:
D. Freyberg;J. Robbins;K. Raymond;J. C. Smart
通讯作者:
J. C. Smart
影响因子:
4.6
作者:
D. E. Linn;Gabriel M. Skidd;Stacci N Mc Vay
通讯作者:
Stacci N Mc Vay
DOI:
10.1002/chem.200501214
发表时间:
2006
期刊:
Chemistry: A European Journal
影响因子:
--
作者:
C. Alvarez;A. Bashall;E. McInnes;R. Layfield;R. Mole;M. Mcpartlin;J. Rawson;P. T. Wood;D. Wright
通讯作者:
D. Wright
DOI:
10.1002/cber.19831160337
发表时间:
1983
期刊:
Chemische Berichte
影响因子:
--
作者:
F. Köhler;Nikolaus Hebendanz
通讯作者:
Nikolaus Hebendanz