Heterocyclic Systems Containing Tin(IV). 10. Control of Three-Center Interactions X.cntdot. .cntdot. .cntdot.Sn-Hal in Stannocanes by Halide Type

Solubilizing Sodium Fluoride in Acetonitrile: Synthesis, Molecular Structure, and Complexation Behavior of Bis(organostannyl)methyl‐Substituted Crown Ethers

“…The molecular structure of compound 2·H 2 O is shown in Figure 1; selected geometrical parameters and crystallographic data are collected in Tables 1 and 2, respectively. Both of the tin atoms in 2·H 2 O are pentacoordinated and show a distorted trigonal bipyramidal configuration [geometrical goodness [20] DAE(#) = 54.58 (Sn(1)) and 63.58 (Sn(2))] with the carbon atoms C(13), C(20), C(21) (at Sn(1)) and C(1), C(7), C(20) (at Sn(2)) occupying the equatorial positions and O(1), I(1) (at Sn(1)) and O(1W), I(2) (at Sn(2)) occupying the axial positions. The Sn(1) atom is displaced by 0.34 in the direction of I(1) and the Sn(2) atom is displaced by 0.27 in the direction of I(2) from the planes defined by the corresponding carbon atoms.…”

Organotin‐Substituted Crown Ethers for Ditopic Complexation of Anions and Cations

“…The tin atom in 4·H 2 O is pentacoordinate and adopts a distorted trigonal-bipyramidal configuration [geometrical goodness Δ(Σϑ) = 68.5°]. [26,27] The equatorial positions are occupied by C(1), C(11), C(21) and the axial positions by Cl(1) and the water oxygen atom. The tin atom is displaced by 0.22 Å from the plane defined by C(1), C(11), C (21) .…”

The UV‐Light Initiated Reaction of Organosilanes with Tungsten Hexacarbonyl: Formation of an Organosilylene Complex and Organosilylium Salts

“…The silicon atom in 2 adopts a distorted trigonal-bipyramidal configuration (geometrical goodness [43][44][45] ∆Σ(θ) = 56.5°) with C(1), C (21) [33] whereas the long distance is similar to the P=O→Si distance determined for the benzoxasilaphosphole [1(P),3(Si)-…”