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organic compounds
The crystal structure of the title ester, C16H26O4, consists of discrete spirocyclic molecules. The six-membered 1,3-dioxane fragment is in a chair conformation and the cyclohexene fragment is in a distorted half-chair conformation. In the crystal structure, the molecules are connected by weak C—H
O contacts, with CO distances ranging from 2.642 (1) to 2.762 (1) Å, forming a three-dimensional network.
O contacts, with CO distances ranging from 2.642 (1) to 2.762 (1) Å, forming a three-dimensional network.metal-organic compounds
The title compound, [Pd2(C4H3OSe)4(C18H15P)2], crystallizes as a centrocymmetric furan-2-selenolate-bridged dinuclear palladium complex. The Pd atom shows a slightly distorted square-planar coordination geometry, with bridging Pd—Se distances of 2.4568 (8) and 2.4729 (8) Å, and a terminal Pd—Se distance of 2.4623 (8) Å. Terminal selenolate ligands are in trans positions with respect to each other.
organic compounds
The title compound, C24H56N6O2Te42+·2I−·C2H3N or H[(tBuNH)Te(μ-NtBu)2Te(μ-O)]2(I)2·MeCN, provides the first example of the cis form of an imidotelluroxane dication. The basket-shaped structure is bispirocyclic, with a `backbone' TeTeTeTe pseudo-torsion angle of −31.51 (3)°. The structure exhibits two ionic TeI interactions [3.4103 (8) and 3.445 (1) Å] and two TeI close contacts [3.863 (1) and 3.924 (1) Å] within the molecule, and two TeI close contacts [3.651 (1) and 3.703 (2) Å] between ions. The intermolecular close contacts connect the cations into pairs which are linked by a weak TeI contact [4.090 (1) Å] to form an infinite chain.
TeTeTe pseudo-torsion angle of −31.51 (3)°. The structure exhibits two ionic TeI interactions [3.4103 (8) and 3.445 (1) Å] and two TeI close contacts [3.863 (1) and 3.924 (1) Å] within the molecule, and two TeI close contacts [3.651 (1) and 3.703 (2) Å] between ions. The intermolecular close contacts connect the cations into pairs which are linked by a weak TeI contact [4.090 (1) Å] to form an infinite chain.
