Two Photon Absorption Properties of CBHB and DEABHB Single Crystals for Optical Limiting Applications.

Novel materials of (E)-N'-(4-chlorobenzylidene)-4-hydroxybenzohydrazide (CBHB) and (E)-N'-(4-(diethylamino) benzylidene)-4-hydroxybenzohydrazide (DEABHB) were synthesized by condensation reaction process and solvent evaporation method was employed to grow CBHB and DEABHB single crystals at room temperature. Lattice parameters of CBHB and DEABHB compounds were recorded using single crystal X-ray diffraction method. The presence of functional groups of the synthesized CBHB and DEABHB compounds were confirmed by Fourier transform infrared and Fourier transform Raman spectral analyses.

Single-walled carbon nanotubes/lithium borohydride composites for hydrogen storage: role of formed LiB(OH), LiCO and LiBO by oxidation and nitrogen annealing.

Lithium Borohydride (LiBH), from the family of complex hydrides has received much attention as a potential hydrogen storage material due to its high hydrogen energy densities in terms of weight (18.5 wt%) and volume (121 kg H per mol). However, utilization of LiBH as a hydrogen carrier in off- or on-board applications is hindered by its unfavorable thermodynamics and low stability in air.

Crystal structure and Hirshfeld surface analysis of poly[[di-μ-glycine-lithium] perchlorate].

In the title salt, {[Li(CHNO)]ClO} , the Li cation is coordinated by four carboxyl-ate oxygen atoms of the glycine mol-ecules with a distorted tetra-hedral geometry. The glycine exists in a zwitterionic form with protonated amino and deprotonated carboxyl-ate groups. In the crystalline state, the title salt is primarily stabilized by inter-molecular N-H⋯O and C-H⋯O inter-actions which inter-connect various units.

Crystal structure and Hirshfeld surface analysis of 1-carb-oxy-2-(3,4-di-hydroxy-phen-yl)ethan-1-aminium chloride 2-ammonio-3-(3,4-di-hydroxy-phen-yl)propano-ate: a new polymorph of l-dopa HCl and isotypic with its bromide counterpart.

The title mol-ecular salt, CHNO·Cl·CHNO, is isotypic with that of the bromide counterpart [Kathiravan (2016 ▸). E, 1544-1548]. The title salt is a second monoclinic polymorph of the l-dopa HCl structure reported earlier in the monoclinic space group 2 [Jandacek & Earle (1971 ▸).

Crystal structure and Hirshfeld surface analysis of 1-carb-oxy-2-(3,4-di-hydroxy-phen-yl)ethan-1-aminium bromide 2-ammonio-3-(3,4-di-hydroxy-phen-yl)propano-ate.

In the title mol-ecular salt, CHNO·Br·CHNO, one of the dopa mol-ecules is in the cationic form in which the α-amino group is protonated and the α-carb-oxy-lic acid group is uncharged, while the second dopa mol-ecule is in the zwitterion form. The Br anion occupies a special position and is located on a twofold rotation axis. The two dopa mol-ecules are inter-connected by short O-H⋯O hydrogen bonds.

Crystal structure of poly[[μ2-di-aqua-di-aqua-μ2-l-proline-κ(2) O:O'-strontium] dibromide].

In the title coordination polymer, {[Sr(C5H9NO2)(H2O)4]Br2} n , the proline mol-ecule exists in a zwitterionic form with one of the ring C atoms disordered over two sites [site-occupancy factors = 0.57 (6):0.43 (6)].

Crystal structure of catena-poly[[[tri-aqua-strontium]-di-μ2-glycinato] dibromide].

In the title coordination polymer, {[Sr(C2H5NO2)2(H2O)3]Br2} n , the Sr(2+) ion and one of the water mol-ecules are located on twofold rotation axes. The alkaline earth ion is nine-coordinated by three water O atoms and six O atoms of the carboxyl-ate groups of four glycine ligands, two in a chelating mode and two in a monodentate mode. The glycine mol-ecule exists in a zwitterionic form and bridges the cations into chains parallel to [001].

(E)-N'-(4-Chlorobenzylidene)-, (E)-N'-(4-bromobenzylidene)- and (E)-N'-[4-(diethylamino)benzylidene]- derivatives of 4-hydroxybenzohydrazide.

The 4-chloro- [C(14)H(11)ClN(2)O(2), (I)], 4-bromo- [C(14)H(10)BrN(2)O(2), (II)] and 4-diethylamino- [C(18)H(21)N(3)O(2), (III)] derivatives of benzylidene-4-hydroxybenzohydrazide, all crystallize in the same space group (P2(1)/c), (I) and (II) also being isomorphous. In all three compounds, the conformation about the C=N bond is E. The molecules of (I) and (II) are relatively planar, with dihedral angles between the two benzene rings of 5.

Dichloridobis(4-fluoro-aniline-κN)zinc.

In the title compound, [ZnCl(2)(C(6)H(6)FN)(2)], the Zn(II) atom has a slightly distorted tetra-hedral geometry, being coordinated by the N atoms of two 4-fluoro-aniline mol-ecules and the two Cl(-) anions. The two benzene rings are almost perpendicular to one another, making a dihedral angle of 89.96 (13)°.

N,N'-Bis(4-chloro-benzyl-idene)-3,3'-dimeth-oxy-biphenyl-4,4'-diamine.

The title compound, C(28)H(22)Cl(2)N(2)O(2), crystallized with two independent mol-ecules (A and B) in the asymmetric unit. The two mol-ecules differ essentially in the orientation of the outer aromatic rings. These dihedral angles are 56.