In the title compound, C(21)H(25)N(3)O(6)S, the dihedral angle between the meth-oxy-benzene and indazole rings is 74.96 (5)°. The crystal packing is stabilized by an N-H⋯O hydrogen bond into a two-dimensional network. In addition, C-H⋯π inter-actions and a π-π contact, with a centroid-centroid distance of 3.5333 (6) Å, are observed. The crystal packing is stabilized by N-H⋯O and C-H⋯O hydrogen ...

In the title compound, [Ni(C(12)H(8)N(2))(H(2)O)(4)](C(12)H(10)O(8)), the Ni(II) ion is six-coordinated by two N atoms from one phenanthroline ligand and by the O atoms of four water mol-ecules in a distorted octa-hedral geometry. In the crystal, inter-molecular O-H⋯O hydrogen bonds form an extensive three-dimensional network, which consolidates the crystal packing.

In the title compound, C(10)H(16)N(2) (2+)·2HSO(4) (-), the S atoms adopt slightly distorted tetra-hedral geometry and the diprotonated piperazine ring adopts a chair conformation. In the crystal, the 1-phenyl-piperazine-1,4-diium cations are anchored between chains formed by the sulfate entities via inter-molecular bifurcated N-H⋯(O,O) and weak C-H⋯O hydrogen bonds. These hydrogen bonds contri...

2-Hydroxy-pyridine when treated with concentrated sulfuric acid is sulfonated at the 3-position to yield the title hydrated salt, H(3)O(+)·C(5)H(4)NO(3)S(-)·2H(2)O. In the crystal structure, the cations, anions and uncoordinated water mol-ecules are linked by extensive O-H⋯O and N-H⋯O hydrogen bonds into a three-dimensional network. The crystal studied is a non-merohedral twin with a twin compo...

The crystal structure of the title compound, C(6)H(10)N(2) (2+)·2Cl(-), has been reported previously in the non-standard setting P2(1)/a [Genet (1965 ▶). Bull. Soc. Fr. Miner. Crist.88, 463-470], with an R value of 0.16. The current redetermination improves significantly the precision of the geometric parameters. In the crystal packing, cations and anions are linked by inter-molecular N-H⋯Cl an...

It is shown that in nuclear magnetic resonance, multiple-quantum (MQ) coherences can be detected "instantly" by exploiting the principle of quantum-mechanical projective measurement. Therefore, the mixing period, which involves collective multispin dynamics and converts MQ coherences into observable single-quantum coherence (magnetization), is not necessary. The experimental examples are given ...

In the title compound, C(15)H(20)O(7), the benzene ring makes dihedral angles of 69.17 (5) and 80.81 (4)° with the two side chains of malonate. The two malonate side chains comprising C/C/O/C atoms are oriented at right angles [86.26 (6)°] with respect to each other. In the crystal structure, the crystal packing is stabilized by weak non-classical inter-molecular C-H⋯O hydrogen bonds, which lin...

Abstract A mixed lead/tin bromide carbodiimide oxide was synthesized by solid‐state reaction between Pb(CN 2 ), PbBr , SnBr and SnO at 400 °C. Its monoclinic crystal structure solved refined in the space group C 2/ m single‐crystal X‐ray diffraction from a yellow single crystal. One crystallographic site found to be occupied both tin lead, agreement with results of energy‐dispersive spectroscop...

In the title crystal structure, C(12)H(22)NOSi(+)·Cl(-), anions and cations are linked via O-H⋯Cl, N-H⋯Cl and N-H⋯O hydrogen bonds to form a two-dimensional network parallel to (101). Within the hydrogen-bonded network, R(4) (2)(22) ring motifs are stacked along [010].

The asymmetric unit of the title salt, 2C6H5CH2NH3 (+)·H2P2O7 (2-), contains two independent benzyl-ammonium cations and a di-hydrogen diphosphate dianion. In the crystal, O-H⋯O and N-H⋯O hydrogen bonds link the cations and anions, forming a two-dimensional network parallel to (010). Within this network, weak C-H⋯O hydrogen bonds are observed.