Synthesis and Characterization of the {Si(NHCH<sub>2</sub>CH<sub>2</sub>NH)<sub>3</sub>[Mo(CO)<sub>3</sub>]<sub>2</sub>}<sup>2–</sup> Complex Comprising the Si(NHCH<sub>2</sub>CH<sub>2</sub>NH)<sub>3</sub><sup>2–</sup> Octahedron
Yi Wang (32470)Samantha DeCarlo (2604475)Luning Wang (769124)Lauren Stevens (3616994)Fu Chen (418017)Peter Zavalij (2074774)Bryan Eichhorn (1675780)
Abstract
Reactions\nof K<sub>12</sub>Si<sub>17</sub> with the low-valent transition-metal\ncomplex Mo(CO)<sub>3</sub>(C<sub>7</sub>H<sub>8</sub>) in ethylenediamine/toluene\nsolutions in the presence of 2,2,2-cryptand yield the {Si(NHCH<sub>2</sub>CH<sub>2</sub>NH)<sub>3</sub>[Mo(CO)<sub>3</sub>]<sub>2</sub>}<sup>2–</sup> dianion, which contains an octahedral Si(NHCH<sub>2</sub>CH<sub>2</sub>NH)<sub>3</sub><sup>2–</sup> subunit.\nThe SiN<sub>6</sub> core comprises a rare example of a doubly deprotonated\nethylenediame ligand in a coordination complex and is also the first\nstructurally characterized example of a homoleptic Si(N∩N)<sub>3</sub> trischelate. Its structure and spectroscopic properties are\ndescribed.
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