Rubidium dimolybdate, Rb₂Mo₂O₇, and caesium dimolybdate, Cs₂Mo₂O₇

Rb₂Mo₂O₇ and Cs₂Mo₂O₇ represent new structure types with infinite chains of linked MoO₄ tetra­hedra and MoO₆ octa­hedra. The chains in Cs₂Mo₂O₇ resemble those in the Na₂Mo₂O₇ structure. The ortho­rhom­bic pseudosymmetry of Cs₂Mo₂O₇ implies a possible high-temperature transition P2₁/c→Pbca.

Ca_0.8Y_2.4Sn_0.8O₆, a quaternary oxide with mixed occupations of Ca/Y and Y/Sn

A new compound in the CaO–Y₂O₃–SnO₂ system, Ca_0.8Y_2.4Sn_0.8O₆, is isotypic with Mg₃TeO₆ and crystallizes in the trigonal space group . All cations are in sixfold coordination sites.

Hexa­fluoro­iodium(VII) hexa­fluoro­arsenate

IF₆AsF₆ crystallizes in the cubic space group Pa with a simple NaCl-like ionic packing. The I and As atoms occupy the 4a and 4b Wyckoff positions, respectively, with symmetry.

Commensurate monoclinic form of Ca₂Zn_0.97Co_0.03Ge₂O₇

The structure of the monoclinic form of dicalcium zinc germanate, obtained by slow cooling from the melt, is described and compared with that of the tetra­gonal form and with monoclinic Ca₂ZnGe_1.25Si_0.75O₇.

Préparation et étude structurale de NH₄Gd(PO₃)₄ et NH₄GdP₄O₁₂

Chaque polyèdre GdO₈ partage ses sommets avec quatre rubans (PO₃)_n dans le polyphosphate et six cycles P₄O₁₂ dans le cyclotétraphosphate. Ces assemblages forment des tunnels dans lesquels résident les ions NH₄⁺.

Poly[bis­[2-(1-cyclo­hexen­yl)ethyl­ammonium] di-μ-iodo-diodo­plumbate(II)]

Iodo­(picolinato-κ²N,O)(picolinic acid-κ²N,O)mercury(II)

(Borohydrido)(18-crown-6)potassium and (borohydrido)(dibenzo-18-crown-6)(tetra­hydro­furan)potassium

Deca­methyl­ferrocenium bis­(2-oxo-1,3-di­thiole-4,5-di­thiolato-κ²S⁴,S⁵)nickelate(III) tetra­hydro­furan solvate

A three-dimensional framework of bis­[tris­(ethyl­enedi­amine)zinc] tetra­iodo­cadmate diiodide assisted by N—H⋯I hydrogen bonds

Variation of hydrogen-bonded networks in hexa­fluoro­phosphate salts of amidate-bridged dirhodium(II,III) complexes with axial aqua ligands

Bis(6-thioxo-1,6-di­hydro­purinium) tetra­chloro­zincate(II)

{Bis(3,5-Di-tert-butyl-2-oxido­benzyl)[2-(N,N-di­methyl­amino)ethyl]amine-κ⁴N,N′,O,O′}zinc(II) and {bis­(3-tert-butyl-5-methyl-2-oxido­benzyl)[2-(N,N-di­methyl­amino)ethyl]amine-κ⁴N,N′,O,O′}(tetra­hdyro­furan)zinc(II)

Two oxo complexes with tetra­nuclear [Fe₄(μ₃-O)₂]⁸⁺ and trinuclear [Fe₃(μ₃-O)]⁷⁺ units

Two germatranes with bulky substituents

Two polymorphs of potassium tri­chloro­[di­ethyl (methyl­sulfinyl­methyl)phosphonate-κS]platinum(II) with Z′ = 1 and 3 in the space group P2₁2₁2₁

Three oxo complexes with a tetra­nuclear [Cu₄(μ₂-Cl)₆(μ₄-O)] unit

Di­chloro­[(1E,1′E)-1,1′-(pyridine-2,6-diyl)di­ethanone bis­(O-methyl­oxime)-κ³N¹,N²,N⁶]copper(II)

Transition metal complexes with thio­semicarbazide-based ligands. LIII. [4-(2-Di­phenyl­phosphino-α-eth­oxy­benzyl-κP)-S-methyl-1-(4-oxidopent-3-en-4-yl­idene-κO)thio­semicarbazido-κ²N¹,N⁴]nickel(II)

Tetra­kis[phthalocyaninato(2–)­antimony(III)] docosa­iodo­hexa­antimony(III)

Two polymorphs of N,N′-diphenethyl­terephthalamide

Two crystals of doubly protonated melaminium salts: melaminium bis­(tri­fluoro­acetate) trihydrate and melaminium bis­(tri­chloro­acetate) dihydrate

2-Bromo-1,3-bis­(bromo­meth­yl)­benzene, with Z′ = 1.5: whole-mol­ecule disorder of one of the two independent mol­ecules

7-De­aza-2,8-di­aza­adenosine

Three substituted (Z)-5-benzyl­idene-2-thioxo­thia­zolidin-4-ones: hydrogen-bonded dimers that can be effectively isolated or linked into chains either by aromatic π–π stacking inter­actions or by dipolar carbon­yl–carbonyl inter­actions

4-(4-Chloro­phen­yl)-3-(4-phenyl­pent-4-en­yloxy)-1,3-thia­zole-2(3H)-thione

(Z)-6-{[1,3-Di­hydroxy-2-(hy­droxymethyl)propan-2-yliminio]methyl}-2-ethoxyphenolate, (Z)-6-{[1,3-dihy­droxy-2-(hy­droxy­meth­yl)propan-2-yliminio]meth­yl}-4-nitrato­cyclohexa-2,4-dienone monohydrate and (R,E)-2-[(1-hy­droxy­butan-2-ylimino)meth­yl]­phenol

(−)-3,7-Dioxo-5β-cholanic acid: dual hydrogen-bonding modes in a diketonic bile-acid derivative

(+)-3,11-Dioxo-5α-androstane­carboxylic acid: catemeric hydrogen bonding in a steroidal diketo acid

Cadaverinium dichloride: a case of centro–non-centrosymmetric ambiguity

Mixed dicationic and monocationic benzidine species in the proton-transfer compound of benzidine with 3,5-di­nitro­salicylic acid

Different nucleobase orientations in two cyclic 2′,3′-phosphates of purine ribonucleosides: Et₃NH(2′,3′-cAMP) and Et₃NH(2′,3′-cGMP)·H₂O

3,3′-Dihy­droxy-5,5,5′,5′-tetra­methyl-2,2′-thio­dicyclo­hex-2-en-1-one

5-Fluoro­uracil and thymine form a crystalline solid solution

2-(4-Hy­droxy­phenyl)-4,4-di­methyl-2-oxazoline: X-ray and density functional theory study

2,2′,3,3′,4,4′,5,5′,6,6′-Deca­fluoro­diphenyl­amine and its 1:1 cocrystal with di­phenyl­amine

4-Iodo-N,N-bis­(2-nitro­phenyl­sulfon­yl)aniline: a three-dimensional framework structure built from six independent C—H⋯O hydrogen bonds

Pyridoxinium picrate

4-Benzo­yloxy-2-methyl-N-(2-pyrid­yl)-2H-1,2-benzo­thia­zine-3-carboxamide 1,1-dioxide

(1SR,2SR,3SR,4RS,5RS,6RS,7SR,8RS)-7,8-Di­chloro­bicyclo­[4.2.0]octa-2,3,4,5-tetrayl tetra­acetate

1-(1-Amino-4-bromo-9,10-dioxo-9,10-di­hydro­anthracen-2-ylcarbon­yl)-1,3-di­cyclo­hexyl­urea

1,2-Bis(di­phenyl­phosphino)benzene and two related mono-me­thio­dides, [o-C₆H₄(PR₂)(PR₂Me)]I (R = Ph or Me)

N-(2-Hy­droxy-3-iodo-5-nitro­benzyl­idene)-3-nitro­aniline: conformational isomers linked into complex sheets by five C—H⋯O hydrogen bonds and a two-centre iodo–nitro inter­action

2,4-Di­methyl­benzaldehyde isonicotinoylhydrazone trihydrate: a three-dimensional hydrogen-bonded framework structure