Structure of potassium hydrogenl(+)-tartrate, KH(C₄H₄O₆)

Polarized Raman and hyperpolarizability studies of Hydroxyethylammonium (l) tartrate monohydrate for quadratic nonlinear optics

“…Even though the carboxyl groups have restricted freedom of rotation around the C-C bond, they are always found to be coplanar with CCO(H) of the same half [11][12][13]. The conformation of the tartrate is similar to be found in other tartrates [14][15][16][17][18][19]. The dihedral angle has been reported to be 63° [5].…”

“…The NLO responses can be understood by investigating the frontier molecular orbitals calculations [19]. It is found that there lies an inverse relation between hyperpolarizability and the energy gap which is given by the difference between highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) energy gap.…”

Effect of annealing and Mn doping on the photoluminescence of strontium tartrate crystals

“…Hence, C 2V symmetry is assumed for the tartrate ions. Its structure had been determined by many authors using X-ray diffraction [18][19][20][21][22][23]. The diffraction pattern of the grown STC were analyzed by using Cu Ka (l ¼ 0.154056 nm) radiation from Bruker, D8 Advance, Germany and were compared with those of strontium tartrate for orthorhombic reported in JCPDS data files.…”

Structure of sodium hydrogen (+)-tartrate monohydrate

“…Apart from early crystallographic work on the structures including determination of absolute configuration (van Bommel & Bijvoet, 1958), accurate structure determinations have only been completed quite recently [Templeton & Templeton (1978) (Cs); Buschmann & Luger (1985) and Akkurt, Hokelek & Soylu (1987) (K); Templeton & Templeton (1989) (Rb)]. Sodium hydrogen (+)-tartrate is not one of the isomorphous set and although the unit-cell parameters and space group have been reported for the monohydratet (Zholanov, Umanskii, Barfolomeeva, Eshkova & Zolina, 1956), its crystal structure has not previously been determined.…”