Bis[1,1,3,3-tetramethyl-1,3-bis(dichloroacetato)distannoxane]
✍ Scribed by Amini, Mostafa M. ;Abadi, Shabnam Hossein ;Mirzaee, Mahdi ;Yang, Shi-Yao ;Ng, Seik Weng
- Publisher
- International Union of Crystallography
- Year
- 2003
- Tongue
- English
- Weight
- 179 KB
- Volume
- 59
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
O-tetratin(IV)
, [[(CH 3 ) 2 -SnO 2 CCHCl 2 ] 2 O] 2 , two Sn atoms are six-coordinate in a C 2 SnO 4 skew-trapezoidal bipyramidal geometry [CÐSnÐC 145.7 (4) ]. The other two Sn atoms are ®ve-coordinate [CÐ SnÐC 154.3 (4) ], but the geometry is better regarded as a trans-C 2 SnO 4 octahedron owing to a long intermolecular SnÐ O bond [SnÐO 2.846 (6) A Ê ], which links the molecules into a linear chain.
📜 SIMILAR VOLUMES
In centrosymmetric octamethyl-1 2 C,2 2 C,3 2 C,4 2 C-tetrakis-"-benzoato O H ;2:3 2 O;3:4 2 O,O H ;[[(CH 3 ) 2 SnO 2 CC 6 H 5 ] 2 O] 2 ; the exocyclic Sn atom is ®ve-coordinated and has a trans±C 3 SnO 2 trigonal bipyramidal geometry [CÐSnÐC = 139.4 (2) ] and the endocyclic Sn atom is six-coordinat
The title compound, (C 27 H 26 P 3 )[AlCl 4 ]ÁCH 2 Cl 2 , was isolated from a mixture containing the triphosphenium ion and its protonated derivative. The central cation ring is non-planar, as in the analogous hexachlorostannate (though the structures are not isomorphous), and the PÐP distances are
Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.002 A Ê Disorder in main residue R factor = 0.056 wR factor = 0.147 Data-to-parameter ratio = 12.9 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.