Structural, thermal and optical characterization of a Schiff base as a new organic material for nonlinear optical crystals and films with reversible noncentrosymmetry

How does hybrid bridging core modification enhance the nonlinear optical properties in donor‐π‐acceptor configuration? A case study of dinitrophenol derivatives

“…The dynamic first hyperpolarizabilities of all the five systems have also shown in Table . It can be seen from Table that the calculated dynamic first hyperpolarizability ( μβ ω ) of parent system 1 (3.62 × 10 −46 esu) is in good agreement with its experimentally reported EFISHG value of 3.00 × 10 −46 esu . Interestingly, the bridging core modification affects the EFISHG values in similar way as in static hyperpolarizabilities.…”

“…We have performed all calculations using G09 program . The molecular structure for the parent 5‐(diethylamino)‐2‐(((3,5dinitrophenyl)‐imino)methyl)phenol (system 1 ) and its derivatives have been shown in Scheme . Keeping the same the D–A configuration of parent system 1 , we have replaced (CHN) bridging combination for system 2 (CHCH), system 3 (NN), system 4 (CHNNCH), and for system 5 (CHNPhNCH) as shown in Scheme .…”

“…A comparative study will provide significant insights on the structure–properties relationships of the nature of linking conjugated π‐electron bridges that constitute the D‐π‐A structure to enhance the amplitude of first hyperpolarizability. Recently, Rodríguez et al have successfully grown the noncentrosymmetric crystals of a D‐π‐A type of Dinitrophenol (DNP) molecules. The DNP molecule has shown reasonably good nonlinear optical response.…”

Synthesis, characterization and corrosion inhibition potential of two novel Schiff bases on mild steel in acidic medium

“…11,12 Recently, widespread studies of organic compounds show that these compounds exhibit various attractive linear and non-linear optical properties. 13,14 Schiff bases are generally synthesized by condensation reaction between aromatic aldehyde and primary amine (-HC]N-). They have been extensively used for variety of biological applications in the eld of pharmaceuticals.…”

An azo-azomethine ligand and its copper(II) complex: Synthesis, X-ray crystal structure, spectral, thermal, electrochemical and photoluminescence properties

“…The growing interest on the coordination compounds of copper with various N-donor ligands, comes mainly from their capability of combining characteristic structural flexibility [13,14], mimicking of protein active sites [15][16][17], ease of preparation [18,19], and stabilization of both oxidation states of the metal usual in biological systems [20,21]. Considerable interest in various N and O donor ligands especially Schiff bases and their transition metal complexes have also grown in the areas of chemistry and biology due to biological activities, such as antiviral [22,23], antitumor [24,25], bactericidal [26,27], fungicidal [18] and nonlinear optical properties [28,29]. This type of the compounds have been used for metal analyses, for device applications related to telecommunications, optical computing [30,31], storage [32,33], and information processing [34,35].…”