Molecular structure and 1H, 13C NMR assignments of 1,3,5-tris(imidazol-1-ylmethyl)-2,4,6-trimethylbenzeneSpringer Science and Business Media LLC - Tập 30 - Trang 115-118 - 2000
Wei-Yin Sun, Jian Fan, Jun Hu, Kai-Bei Yu, Wen-Xia Tang
The molecule 1,3,5-tris(imidazol-1-ylmethyl)-2,4,6-trimethylbenzene (titmb) crystallizes as a monohydrate in the monoclinic space group C2/c with a = 20.888(4), b = 13.220(2), c = 14.385(2) Å, β = 90.36(1)°. Two of three imidazole groups are on one side of the central benzene ring, and the other one is on the opposite side. The crystal packing of titmb is stabilized by O-H--N hydrogen bonding betw...... hiện toàn bộ
Hydrogen bonding in 2-hydroxy((di)thio)benzoates. III. IR and NMR spectra of 2,6-dimethylpiperidinium and tetraethylammonium saltsSpringer Science and Business Media LLC - Tập 23 - Trang 403-406 - 1993
Werner Mikenda, Erich Steinwender, Hans Peter Kählig
Solid state ir and solution ir and nmr data are reported for 2,6-dimethylpiperidinium and tetraethylammonium salts of 2-hydroxybenzoic, 2-hydroxythiobenzoic and 2-hydroxydithiobenzoic acid. The solid state ¯v(OH) frequencies, range from 2800 to 2300 cm−1 and decrease within the series thiocarboxylate (O-H⋯O)>dithiocarboxylate (O-H⋯S)>carboxylate (O-H⋯O)>thiocarboxylate (O-H⋯S), reflect the differe...... hiện toàn bộ
Crystal structure of strontium potassium arsenate octahydrateSpringer Science and Business Media LLC - Tập 28 - Trang 741-746 - 1998
M. Mathew
The crystal structure of strontium potassium arsenate octahydrate, SrKAsO4·8H2O, has been determined by single crystal X-ray diffraction. The crystals are tetragonal, a = 7.144(1), c = 23.613(2) Å, space group I41md (No. 109), Z = 4, V = 1205.1(1) Å3, and d
c = 2.258 g cm−3. All cations and anions in this compound are completely surrounded by water molecules. Sr2+ and K+ ions are each coordinated ...... hiện toàn bộ
Crystallographic and Computational Studies of Non-Covalent Interactions of Molecular Clips with a Series of Small Solvent MoleculesSpringer Science and Business Media LLC - Tập 48 - Trang 131-137 - 2018
Madhubabu Alaparthi, Dayton Jonathan Vogel, Andrew G. Sykes
Molecular clips hold the potential of self-association and the ability to form host–guest complexes. Here we describe the synthesis of a 1,2-dimethoxyphenyl terminated glycoluril molecular clip (2) that binds with smaller solvent molecules by π⋯H–C and C=O⋯H–O non-covalent interactions. We obtained single crystals of 2 and 2 + CH2Cl2, CH3OH, CH3CN, and DMF solvents complexed within the clip. These...... hiện toàn bộ
Crystal structure of aquo (hydroxo) (ethylenediaminetetraacetato) sodium(I) tin(IV), NaSn(OH)(edta)(H2O)Springer Science and Business Media LLC - Tập 26 - Trang 503-508 - 1996
Chantal Brouca-Cabarrecq, Bertrand Marrot, Alain Mosset
NaSn(OH)(edta)(H2O) is monoclinic, space groupP21/c, witha=9.747(3)Å,b=9.121(3)Å,c=16.430(6)Å, β=98.69(4)°, Å3, andZ=4. The coordination environment of Sn(IV) is a capped octahedron. Sn−O distances range from 1.990(6)Å to 2.351(7)Å. Na(I) is five coordinated to three different edta molecules. Na−O distances range from 2.283(9)Å to 2.414(7)Å. The edta ligand presents the E, G/R conformation. The cr...... hiện toàn bộ