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The title compound, [Li(C18H32N3Si2)]n, is a convenient ligand-transfer reagent for the synthesis of metal complexes of this β-diketiminate ligand. Lithium is coordinated by three N atoms: two are in the delocalized NCCCN fragment and one is from the pyridyl in an adjacent mol­ecule. Owing to the coordination of lithium by the pyridyl N atom, the crystal structure displays a one-dimensional polymeric structure.

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In the crystal structure of the title compound, C14H17NO3, inter­molecular O—H...O hydrogen bonds [O...O = 2.692 (4) Å] link the mol­ecules into extended one-dimensional chains. These chains are, in turn, linked into a three-dimensional network by weak inter­molecular C—H...O inter­actions [C...O = 3.368 (5) Å].

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The title compound, C14H18N2Si or (PhNH)2SiMe2, has been prepared and its single-crystal structure determined. There are two independent molecules in the asymmetric unit. Each of them contains an N-Si-N fragment which is twisted out of the phen­yl plane . Each mol­ecule can be considered as having an approximate twofold axis.

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In the title compound, [SnCl4(C3H7N)2], the coordination geometry around the Sn atom is octa­hedral, with the two N atoms of dimethyl­amine in the axial sites. The Sn atom is at the center of the square formed by four Cl atoms. The title mol­ecule lies on a crystallographic center of symmetry. The crystal structure has a moderate N—H...Cl hydrogen bond.

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The title compound, (C8H15N3)[SnCl6]·H2O, is a salt involving a doubly protonated amine cation and a divalent [SnCl6]2- anion. The solid-state structure agrees with that found by 1H NMR and 13C NMR analyses. The salt has potential for use in the synthesis of organometallic compounds.
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