The title compound tetrakis(2-methoxyphenyl)tin, [Sn(C 7 H 7 O) 4 ], crystallizes in the triclinic space group P1 with two molecules in the asymmetric unit. The coordination at the Sn atoms is distorted tetrahedral with C−Sn−C angles between 105.79 (16) and 112.47 (15)°. The Sn−C distances are in the range 2. 135 (4)-2. 150 (4) A and the Sn...O intramolecular distances are between 3.042 and 3. 128 (3) A. The related molecule tetrakis(2-methoxybenzyl)tin, [Sn(C 8 H 9 O) 4 ], crystallizes in space group P42 1 c and has crystallographic 4 symmetry, with Sn-CH 2 2. 165 (6) A and an intramolecular Sn...O separation of 3.241 (5) A
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Ross et al. (1994) studied this question.