β-Alanine Zn(II) and Cd(II) coordination complexes with diamondoid frameworks possessing second-order nonlinear optics properties

Synthesis and spectroscopic study of new ligand 3-(acetylthioureido)propanoic acid with their metal complexes

“…The FT-IR spectra of all prepared complexes exhibited marked difference between bands belonging to the stretching vibration of ν(COO -)asym in the range between ν(1554-1582)cm -1 shifted to lower frequencies by (162-134)cm -1 and ν(COO -)sym (1411-1404)cm -1 suggesting shifted to higher frequencies by (38-31) cm -1(12) (13) of the possibility of the coordination of ligand through the oxygen atom at the carbonyl group, while the band caused by ν(N-H) appeared between (3414-3336.85)cm -1 shifted to lower frequencies by (313-235.85)cm -1 which indicates to the coordination of ligand through the nitrogen atom at ν(N-H)group .The stretching vibration band ῡ(C=O amide) show change little frequencies (1612-1639)cm -1 and ν(C=S) show between frequencies (1203-1261)cm -1 (18) there for indicating do not coordinate to the metal ion. Metal-oxygen and metal-nitrogen bonds are confirmed by the presence of the stretching vibration of ν(M-O) and ν(M-N) around (501-451)cm -1 and (470-405)cm -1 respectively (17) .Table (4) describes the important bands and assignment for free ligand (ATA) and its complexes. (20) , all data are indicated in the Table (1).…”

“…In addition to the above key factor, β-alanine also exhibits neurotransmitter activity, by activating glycine and GABA (gammaaminobutyric acid) receptors (3) , and promotes anti-glycation effects because it increases carnosine levels in the body.. β -alanine plays a protective role involving preservation of enzyme structure and function. It suppresses heatinduced LDH inactivation, prevented LDH (Lactate dehydrogenase) aggregation, and reactivated thermally denatured LDH (4) .. It can also act like an osmolyte, and may be able to help with proper protein folding.…”

Enhanced Second-Harmonic-Generation Response in a KH2PO4-Type Calcium Nitrate Carboxylate with Unusual Three-Dimensional Inorganic and Organic Connections

“…Other inorganic anions, such as [IO 3 ] − , [BrO 3 ] − , [SeO 3 ] 2– , and [BO 3 ] 3– groups, were also investigated in nitrate-based NLO materials . However, the synthesis of nitrate-based NLO materials involving organic carboxylate anions has remained elusive despite extensive research on metal carboxylate frameworks …”