The title compound, {(C(8)H(20)N(2))[PbI(4)]}(n), is an inorganic-organic hybrid. The structure is composed of alternate layers of two-dimensional corner-sharing PbI(6) octa-hedra ( symmetry) and 1,4-bis-(ammonio-meth-yl)cyclo-hexane cations ( symmetry) extending parallel to the bc plane. The cations inter-act with the inorganic layer via N-H⋯I hydrogen bonding in the right-angled halogen sub-t...

Hydrogen bonding plays a foundational role in the life, earth, and chemical sciences, with its richness and strength depending on the situation. In molecular materials, these interactions determine assembly mechanisms, control superconductivity, and even permit magnetic exchange. In spite of its long-standing importance, exquisite control of hydrogen bonding in molecule-based magnets has only b...

The title compound, {(C(8)H(20)N(2))[PbCl(4)]}(n), crystallizes as an layered inorganic-organic hybrid perovskite-type structure. Corner-sharing PbCl(6) octa-hedra extend parallel to the ac plane. Adjacent layers are staggered relative to one another, with diammonium cations separating these layers. The cations exhibit symmetry and inter-act with the inorganic sheets via N-H⋯Cl hydrogen bonding...

The reaction of aqueous solutions of amino-guanidine hydrogennitrate and acetyl-acetone produces the title pyrazole salt, C(7)H(18)N(8) (2+)·2NO(3) (-). The crystal structure is stabilized by a complex N-H⋯O hydrogen-bonding network. The difference in the engagement of the two nitrate anions in hydrogen bonding is reflected in the variation of the corresponding N-O bond lengths.

A new chalcone of the coumarin, C(21)H(18)O(7), containing an annulated α-pyrone ring, was obtained by condensation of the borate complex of ac-yl(hydr-oxy)coumarin with trimethoxy-benzaldehyde. The structure exhibits intra-molecular hydrogen bonding between the hydroxyl oxygen and the ketonic oxygen in the coumarin group. The bicyclic coumarin fragment and the benzene ring form a dihedral angl...

The title compound, {(C(8)H(20)N(2))[PbBr(4)]}(n), crystallizes as an inorganic-organic hybrid with alternating layers of diammonium cations and two-dimensional corner-sharing PbBr(6) octa-hedra extending parallel to the bc plane, which are eclipsed relative to one another. Both PbBr(6) octa-hedra and the organic cation exhibit symmetry. The cations inter-act via N-H⋯Br hydrogen bonding in the ...

In the title hydrated salt, C(4)H(6)N(3) (+)·C(2)HO(4) (-)·H(2)O, inter-molecular N-H⋯O and O-H⋯O hydrogen bonding helps to stabilize the crystal structure.

In the title compound, 2C(6)H(16)N(+)·C(10)H(6)O(6)S(2) (2-), the cations and anions are associated via N-H⋯O and C-H⋯O hydrogen-bonding inter-actions.