The metal-organic framework [Cd15(5MT)18(OH)4(SO4)4] (5-MT = 5-methyl-1H-tetrazole) with an unprecedented Cd(3)(micro3-OH)(micro3-SO4) core and two kinds of tetrazole coordination modes was formed by self-assembly and in situ synthesis of the 5-MT tetrazole ligand; the structure exhibits an unusual 3(9) x 4(12) x 5(15) topological network and shows reversible shrinkage and expansion in a crysta...

In the crystal structure of the title compound, C(10)H(9)Cl(2)NO(3)·H(2)O, the conformations of the amide O atom and the carbonyl O atom of the acid segment are anti to the H atoms of adjacent -CH(2) groups. In the crystal, the mol-ecules are linked into a three-dimensional network through N-H⋯O and O-H⋯O inter-molecular hydrogen bonds.

In the mol-ecule of the title compound, C(14)H(11)ClN(2)O(2), the dihedral angle between the benzene rings is 30.53 (4)°. In the crystal structure, inter-molecular O-H⋯O and N-H⋯O hydrogen bonds link the mol-ecules into a two-dimensional network. π-π contacts between benzene rings [centroid-centroid distance = 3.619 (1) Å] may further stabilize the structure. The crystal studied was found to be...

The crystal structure of the title compound, C(12)H(10)ClF(3)O(3), was determined in order to establish the configuration of the C=double bond. The compound was found to be the Z isomer. The crystal structure is dominated by Cl⋯O halogen bonds [Cl⋯O = 3.111 (3) Å], as well as C-H⋯O and C-H⋯F hydrogen-bonding inter-actions, that connect neighboring mol-ecules into a three-dimensional supra-molec...

We demonstrate a polymer network liquid crystal (PNLC) with negligible hysteresis while keeping submillisecond response time. By doping about 1% dodecyl acrylate (C12A) into the liquid crystal/monomer precursor, both hysteresis and residual birefringence are almost completely eliminated. The operating voltage and scattering properties remain nearly intact, but the tradeoff is enhanced double re...

In the mol-ecule of the title compound, C(13)H(13)NO, the two benzene rings are oriented at a dihedral angle of 59.9 (2)°. In the crystal structure, the benzene rings of neighbouring mol-ecules are oriented nearly parallel or perpendicular, making dihedral angles of 2.8 (2) and 79.5 (2)°, respectively. The crystal structure is stabilized by a network of C-H⋯π and N-H⋯π inter-actions.

Received Jan 13, 2018 Revised Mar 15, 2018 Accepted Mar 30, 2018 Quartz Crystal Microbalance (QCM) is a device that allows non-destructive measurements of r in situ reaction activities. In this article, an array comprising of six 3MHz QCM sensors in an array were characterized using a vector network analyzer and OpenQCM, a portable measuring instrument that measures change in resonance frequenc...

In the title compound, C(10)H(9)ClN(4)OS, an intra-molecular N-H⋯O hydrogen-bonding inter-action and an N-H⋯N inter-action generate ring motifs [graph sets S(6) and S(5), respectively]. In the crystal, mol-ecules form a chain through N-H⋯O hydrogen bonds, and these are extended by N-H⋯S hydrogen-bonding inter-actions into an infinite three-dimensional network. The crystal structure also exhibit...

The asymmetric unit of the title co-crystal, C(8)H(12)N(+)·C(7)H(4)NO(4) (-)·C(7)H(5)NO(4), contains two cations, two anions and two neutral 4-nitro-benzoic acid mol-ecules. In the crystal, O-H⋯O, N-H⋯O and C-H⋯O hydrogen bonds connect the ions and mol-ecules, forming a three-dimensional network.

In the title compound, C(11)H(8)Cl(2)N(2)O(2)·H(2)O, the dihedral angle between the benzene and isoxazole rings is 59.10 (7)°. In the crystal, the components are linked by N-H⋯O and O-H⋯O hydrogen bonds into a three-dimensional network. The crystal structure is further stabilized by π-π stacking inter-actions [centroid-centroid distance = 3.804 (2) Å].