Cu(Cu_0.44Cr_4.56)Ge₂O₁₂: a close-packed oxide with CuO₄ tetra­hedra

The structure of the title compound is described as a cubic close-packed arrangement of O atoms containing Cu⁺/Cu²⁺ ions in a tetra­hedral coordination. Slabs of edge-sharing CrO₆ octa­hedra and isolated CuO₄ and GeO₄ tetra­hedra are aligned parallel to the bc plane and are separated from each other by GeO₄ tetra­hedra along a.

A pseudo-merohedrally twinned rare-earth sulfate: K₆[Ce(HSO₄)₂(SO₄)₄]·H₂O, a novel structure type

This acidic ternary rare-earth sulfate is unique as it contains rare-earth monomers, [Ce(HSO₄)(SO₄)₄]⁵⁻, and the structure is composed of these monomers, water mol­ecules, discrete hydrogensulfate ions and potassium ions held together by ionic inter­actions. There are two alternating layers in the structure, with the compositions [K₄Ce(HSO₄)(SO₄)₄]⁻ and [K₂(HSO₄)(H₂O)]⁺.

LiMn₃(SeO₃)₂(HSeO₃)₆

The title compound, lithium trimanganese bis­[tri­oxo­selenate(IV)] hexa­kis[hydrogentrioxoselenate(IV)], is built up from a vertex-sharing network of distorted Mn^IIIO₆ octa­hedra, SeO₃ and HSeO₃ pyramids, and unusual Li(OH)₆ octa­hedra, resulting in a dense three-dimensional structure. Mn, Li and one Se atom have site symmetries of , , and 3, respectively. An O—H⋯O hydrogen bond helps to establish the crystal packing.

Poly[μ₂-trans-1,2-di-4-pyridylethyl­ene-κ²N:N′-μ₂-sulfato-κ²O:O′-zinc(II)]

Bis(2-amino-3,5-di­bromo-4,6-dimethyl­pyridinium) hexa­bromido­stannate(IV)

Di­aqua­bis­[4-(4H-1,2,4-triazol-4-yl)­benzoato-κ²O,O′]cobalt(II), and the cadmium(II) and copper(II) analogues: new self-complementary hydrogen-bond donor/acceptor modules for designing hydrogen-bonded frameworks

Chlorido­bis­[(2-oxoazocan-1-yl)methyl]­germanium(IV) tri­fluoro­methane­sulfonate

trans-Di­aqua­{5,5′-[(E,E)-pyridine-2,6-diylbis(methyl­idyne­nitrilo)]bis­[pyrimi­dine-2,4(1H,3H)-dione]}zinc(II) nitrate hexa­fluorophosphate trihydrate

A new polymorph of a cobalt(III) Schiff base complex exhibits a one-dimensional C—H⋯O hydrogen-bonded extended structure with helical 2₁ symmetry

An unusual P3₁2 framework for the Ni(4,4′-bi­pyridine)(H₂O)₄ chain

Poly[[μ₂-4,4′-bi­pyridine-di-μ₃-sulfito-dizinc(II)] monohydrate]

A new two-dimensional Cd^II coordination polymer constructed by pyrazine-2,3-di­carboxyl­ate

A new two-dimensional supra­molecule composed of μ-2,6-dimethyl­pyridine-3,5-di­carboxyl­ato-κ⁴O³,O^3′:O⁵,O^5′-bis­[chloro­(1,10-phenanthroline-κ²N,N′)zinc(II)]

Unexpected oxidation of a diphos­phine by bis­(1,3-di­phenylpropane-1,3-dionato)­cobalt(II), [Co(dbm)₂]

(Croconato-κ²O,O′)bis­(1,10-phenanthroline-κ²N,N′)cobalt(II), and the nickel(II) and copper(II) analogues

Sodium pyridine-3-carboxyl­ate

Hydrogen bonding and π–π stacking in the three-dimensional supra­molecular complex bis­(4,4′-bipyridinium) di­aqua­dioxalatoferrate(II) bis­(hydrogen oxalate)

A twinned triclinic polymorph of di­bromido­tetra­kis(tetra­hydro­furan-κO)magnesium(II)

Aqua­(2,2′-di­amino-4,4′-bi-1,3-thia­zole-κ²N,N′)(oxydi­acetato-κ³O,O′,O′′)cobalt(II) trihydrate

Isomeric Schiff bases related by dual imino-group reversals

Supra­molecular hydrogen-bonding networks in bis­(adeninium) phthalate phthalic acid 1.45-hydrate

1-((E)-{(1R,2R)-2-[(E)-(2-Hy­droxy-1-naphth­yl)methyl­ene­amino]cyclo­hexyl}iminiometh­yl)naphthalen-2-olate: a Schiff base compound having both OH and NH character

2,3,5,6-Tetra­kis(phen­oxy­methyl)­pyrazine and 2,3,5,6-tetra­kis­(phenyl­sulfanyl­methyl)pyrazine

2-Meth­oxy-4-[(5-oxo-2-phenyl-4,5-di­hydro-1,3-oxazol-4-yl­idene)meth­yl]­phenyl 4-methyl­benzene­sulfonate

3,4-Di­ethyl-2,5-di­hydro-1H-pyrrole-2,5-dione

4,6-Di­methyl-2-(3-pyrid­yl)quinolin-5-amine

A re-examination of supra­molecular aggregation in two polymorphs of acetone 2,4-di­nitro­phenyl­hydrazone

Ethyl N-[2-(hy­droxy­acetyl)­phenyl]­carbamate, ethyl N-[2-(hy­droxy­acetyl)-4-iodo­phenyl]­carbamate and ethyl N-[2-(hy­droxy­acetyl)-4-methyl­phenyl]­carbamate

Carbon­yl–carbonyl, carbon­yl–π and carbon­yl–halogen dipolar inter­actions as the directing motifs of the supra­molecular structure of ethyl 6-chloro-2-oxo-2H-chromene-3-carboxyl­ate and ethyl 6-bromo-2-oxo-2H-chromene-3-carboxyl­ate

2,2,6,6-Tetra­methyl-4-oxopiperi­din­ium nitrate

4,4′-Bi­pyridyl N,N′-dioxide–3-hy­droxy-2-naphthoic acid (1/2)

The α- and β-epoxides of 3β-acet­oxy-5α-lanost-9(11)-en-7-one

Naphthalene-1,7-diol

Constructor graph description of hydrogen bonding in a supra­molecular assembly of N,N′-bis­(2-hy­droxy-1-methyl­ethyl)phthalamide

4-Amino-3-methyl-6-phenyl-1,2,4-triazin-5(4H)-one (metamitron) and 4-amino-6-methyl-3-phenyl-1,2,4-triazin-5(4H)-one (isometamitron)

Lamellar aggregation and hydrogen-bonding motifs in 3-(amino­carbon­yl)­pyridinium perchlorate and hydrogen oxalate

Differences in the crystal structures of two di­alkyl diester tri­phenyl­phospho­nium ylids