Di-μ2-methanolato-bis(μ-4-methyl-5-sulfanylidene-4,5-dihydro-1H-1,2,4-triazolido-κ2 N 1:N 2)di-μ3-oxido-tetrakis[dibutyltin(IV)]
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چکیده
The asymmetric unit of the title distannoxane, [Sn(4)(C(4)H(9))(8)(C(3)H(4)N(3)S)(2)(CH(3)O)(2)O(2)], contains two mol-ecules, each of which lies about an individual center of inversion. The tetra-nuclear mol-ecule features a three-rung-staircase Sn(4)O(4) core in which two independent Sn(IV) atoms are bridged by the triazolide group. The negatively charged N atom of the triazolide group binds to the terminal Sn atom at a shorter distance [Sn-N = 2.262 (3), 2.254 (3) Å] compared with the neutral N atom that binds to the central Sn atom[SnN = 2.617 (4); 2.830 (3) Å]. The oxide O atom is three-coordinate whereas the methano-late O atom is two-coordinate. The terminal Sn atom is five-coordinate in a cis-C(3)SnNO trigonal-bipyramidal environment, whereas the central Sn atom is six-coordinate in a C(2)SnNO(3) skew-trapezoidal-bipyramidal geometry.
منابع مشابه
Di-μ2-methanolato-bis(μ-4-methyl-5-sulfanylidene-4,5-dihydro-1H-1,2,4-triazolido-κ2 N 1:N 2)di-μ3-oxido-tetrakis[dimethyltin(IV)]
The title distannoxane, [Sn(4)(CH(3))(8)(C(3)H(4)N(3)S)(2)(CH(3)O)(2)O(2)], lies about a center of inversion; the tetra-nuclear mol-ecule features a three-rung-staircase Sn(4)O(4) core in which the two crystallographically independent Sn(IV) atoms are bridged by the triazolide group. The negatively charged N atom of the triazolide group binds to the terminal Sn atom at a shorter distance [Sn-N ...
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