Hydrogen bonding in dibromo[2-(dimethyl­aminomethyl)phenyl][2-(dimethylammoniomethyl)phenyl]tin(IV) tetra­bromo­[2-(dimethyl­aminomethyl)phenyl]­tin(IV)

The mol­ecular structure of the title compound, [SnBr₂(C₉H₁₂N)(C₉H₁₃N)][SnBr₄(C₉H₁₂N)], consists of a dibromo­bis[2-(dimethyl­aminomethyl)phenyl][2-dimethylammoniomethyl)phenyl]tin(IV) cation and a tetra­bromo­[2-(dimethyl­aminomethyl)phenyl]tin(IV) anion. As a result of strong intra­molecular N→Sn inter­actions, distorted trigonal–bipy­ramidal and octa­hedral coordination geometries are established for the metal centres of the diorganotin(IV) and monoorganotin(IV) fragments, respectively. The cation and anion are linked together by two Br...H contacts, while three additional similar contacts result in a dimeric fragment which repeats in a two-dimensional supra­molecular arrangement.

Intra­molecular inter­actions in μ-oxido-bis­{bis­[2-(dimethyl­amino­methyl)­phen­yl]stannol}

The title compound, [Sn₂(C₉H₁₂N)₄O(OH)₂], consists of two [2-(Me₂NCH₂)C₆H₄]₂SnOH units bridged by an O atom located on a twofold rotation axis. The unique Sn atom is six-coordinated with a (C,N)₂SnO₂ octa­hedral core, as a result of the strong intra­molecular N→Sn dative coordination trans to the Sn—O bonds [N—Sn—O = 170.24 (12) and 167.83 (10)°]. Owing to the presence of inter­molecular H...phenyl contacts, the mol­ecules are arranged in a ladder-like structure.

Iodidomesityltellurium(II) iodido­trimesitylditellurium(II)(Te—Te)

In the title compound, C₉H₁₁ITe·C₂₇H₃₃ITe₂ or (Mes)TeI·(Mes₂Te)TeI(Mes) (Mes is mesityl or 2,4,6-trimethyl­phen­yl), a strong Te...I inter­action of 3.3157 (9) Å links the Te atom of an iodidomesityltellurium(II) moiety, (Mes)TeI, and an I atom of the iodidotrimesitylditellurium(II) unit, (Mes₂Te)TeI(Mes). Further weak Te...I contacts of 4.0818 (9) Å give rise to one-dimensional chains along the b axis in the crystal structure. An intra­molecular C—H...π(arene) inter­action is present in the (TeMes₂)TeI(Mes) moiety, with a C...Cg distance of 3.497 (9) Å and a C—H...Cg angle of 142° (where Cg is the centroid of a mesityl ring of the Mes₂Te moiety).