Xin-Yuan Chen

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In the crystal structure of the title compound, C(7)H(7)N(2) (+)·I(-)·H(2)O, [C(7)H(7)N(2) (+)](n) chains extending along the a-axis direction are linked via N-H⋯N hydrogen bonds. The cations are further connected to the anions by N-H⋯I, N-H⋯O and O-H⋯I hydrogen bonds, leading to the formation of a sheet parallel to the ac plane. π-π inter-actions(More)
In the title compound, (C(6)H(5)N(5))(2)[Mg(H(2)O)(6)]Cl(2), the asymmetric unit contains one zwitterionic 5-(pyridinium-3-yl)tetra-zol-1-ide mol-ecule, one half of an [Mg(H(2)O)(6)](2+) cation ( symmetry) and one chloride ion. The Mg(II) ion is surrounded by six water mol-ecules, with their O atoms located at the apices, exhibiting a slightly distorted(More)
PURPOSE To develop a dual energy imaging method to improve the accuracy of electron density measurement with a cone-beam CT (CBCT) device. MATERIALS AND METHODS The imaging system is the XVI CBCT system on Elekta Synergy linac. Projection data were acquired with the high and low energy X-ray, respectively, to set up a basis material decomposition model.(More)
In the title compound, [Na(2)(C(6)H(4)N(5)O)(2)(H(2)O)(8)], the Na(I) atom is in a distorted octahedral environment defined by six O atoms, one from the 5-(1-oxopyridin-4-yl)tetra-zolide anion and five from water mol-ecules. Two water mol-ecules act as bridging ligands, resulting in the formation of dimeric units organized around inversion centers. In the(More)
In the title 1:1 adduct, C(6)H(4)N(2)·C(7)H(6)O(2), the carboxyl group and its attached phenyl ring are essentially coplanar, being twisted from each other by a dihedral angle of only 2.05 (3)°. In the crystal, the mol-ecules are connected via O-H⋯N and C-H⋯O hydrogen bonds, building an R(2) (2)(7) ring. Mol-ecules are further linked through π-π(More)
In the title hydrated mol-ecular salt, C(7)H(7)N(2) (+)·C(2)HO(4) (-)·0.5H(2)O, contains a 3-cyano-anilinium cation, a hydrogen oxalate anion and half a water mol-ecule in an asymmetric unit. The dihedral angle between the CO(2)(H) and CO(2) planes of the hydrogen oxalate ion is 7.96 (1)°. In the crystal, the components are linked by N-H⋯O and O-H⋯O(More)