Crystal structure of defect scheelite-type Nd_2/3[WO₄]

The crystal structure of defect-scheelite type Nd_2/3[WO₄] consists of [WO₄]²⁻ tetra­hedra and trigonal [NdO₈]^13– dodeca­hedra.

cis,cis,cis-Di­chlorido­bis­(N⁴,N⁴-di­methyl­pyridin-4-amine-κN¹)bis­(di­methyl sulfoxide-κS)ruthenium(II)

In the structure of the title compound, the Ru—N distances of the DMAP ligands are influenced by the trans chloride or di­methyl­sulfoxide-κS ligands.

Bis[S-octyl 3-(2-methyl­propyl­idene)di­thio­carb­azato-κ²N³,S]nickel(II)

The bis-chelated mononuclear nickel(II) complex shows inversion symmetry, with the di­thio­carbazato ligand in the usual trans configuration and the central metal cation in a square-planar coordination environment.

trans-Di­bromido­tetra­kis­(5-methyl-1H-pyrazole-κN²)manganese(II)

The title compound was synthesized using Mn(CO)₅Br. The manganese atom is situated on a crystallographic inversion center. The supra­molecular architecture is characterized by several inter­molecular C—H⋯N, N—H⋯Br and C—H⋯π inter­actions.

Poly[(μ-2,3-di­ethyl-7,8-di­methyl­quinoxaline-κ²N:N)(2,3-di­ethyl-7,8-di­methyl­quinoxaline-κN)-μ-nitrato-κ²O:O′-nitrato-κ²O,O′-disilver(I)]

The structure of the title compound, [Ag₂(NO₃)₂(C₁₄H₁₈N₂)₂]_n, contains subtle differences in ligand, metal, and counter-anion coordination. One quinoxaline ligand uses one of its quinoxaline N atoms to bond to one silver cation. That silver cation is bound to a second quinoxaline which, in turn, is bound to a second silver atom, thereby using both of its quinoxaline N atoms. A nitrate group bonds with one of its O atoms to the first silver and uses the same oxygen to bond to a silver atom (related by symmetry to the second), thereby forming an extended network. The second nitrate group on the other silver bonds via two nitrate O atoms; one silver cation therefore has a coordination number of three whereas the second has a coordination number of four.

2-Ferrocenyl-2-[(2-ferrocenylethen­yl)(morpholin-4-yl)meth­yl]-1,3-di­thiol­ane

The structure of 2-ferrocenyl-2-[(2-ferrocenylethen­yl)(morpholin-4-yl)meth­yl]-1,3-di­thiol­ane, is described. In the crystal, cyclo­penta­dienyl-C—H⋯O(morpholin­yl) inter­actions feature within helical chains parallel to the c-axis direction. The chains are connected by methyl­ene- and cyclo­penta­dienyl-C—H⋯O(cyclo­penta­dien­yl) inter­actions.

Bis[2,6-bis­(1H-benzimidazol-2-yl)pyridine]ruthenium(II) bis­(hexa­fluorido­phosphate) di­ethyl ether tris­olvate

The cationic complex of the title salt, [Ru(C₁₉H₁₃N₅)₂](PF₆)₂·3C₄H₁₀O, has the Ru atom in a slightly distorted octa­hedral environment of two tridentate benzimdazolyl-pyridine ligands and displays extensive π–π and C—H⋯π inter­actions.

erythro-{1-Bromo-1-[(1-phenyl­eth­yl)sulfon­yl]eth­yl}benzene

Structural analysis of the title diasteromeric sulfone determines this to be the erythro (RR/SS) isomer, and was pivotal in showing that the 1,3-elimination reactions of these compounds, which lead to substituted stilbenes, occur with inversion at each asymmetric carbon atom.

5-Bromo-2-(phenyl­amino)­benzoic acid

The mol­ecules of the title compound pair up to form carb­oxy­lic acid–carb­oxy­lic acid homodimers in the crystal structure.

4-Fluoro-2-(phenyl­amino)­benzoic acid

There are two crystallographically independent mol­ecules in the asymmetric unit of the title compound, which are linked by pairwise O—H⋯O hydrogen bonds.

10-Bromo-N,N-di­phenyl­anthracen-9-amine

There are no significant π–π or C—H⋯π inter­actions in the extended structure of the title compound.

4-Fluoro­benzyl (Z)-2-(2-oxoindolin-3-yl­idene)hydrazine-1-carbodi­thio­ate

The crystal structure of a new fluorinated di­thio­carbazate imine containing the isatin moiety, 4-fluoro­benzyl (Z)-2-(2-oxoindolin-3-yl­idene)hydrazine-1-carbodi­thio­ate, is described.

{N-[1-(2-Oxidophen­yl)ethyl­idene]-DL-alaninato}(pentane-1,5-di­yl)silicon(IV)

The coordination geometry of the penta­coordinated Si^IV atom in the title complex is a distorted trigonal bipyramid.

Methyl N-{(1R)-2-[(meth­oxy­carbon­yl)­oxy]-1-phenyleth­yl}carbamate

The chiral title compound forms supra­molecular chains, through N—H⋯O hydrogen bonds between the amide and carboxyl­ate groups.