Abstract：
Bis-Chalcone (BBDP) has been prepared by condensation of N, N-dimethyl benzaldehyde and 1,1\'-([1,1\'-biphenyl]-4,4\'-diyl) di (ethan-1-one), and structure of BBDP was characterized by Mass Spectra, 13C-NMR, 1H-NMR, and IR. Physicochemical properties including Dipole-moments, Stoke-Shifts, Oscillator-strength, dielectric constant and quantum-yields of fluorescence of BBDP were investigated by the emission and absorbances in different solvents. Compound (BBDP) displayed bathochromic shift upon increasing the solvent polarity (from n-Hexane to DMSO). Furthermore, we have exploited third-order nonlinear optical characteristics of the bisChalone were invigilated by the Z-scan techniques in Chloroform. The measurements were taken with a continuous-wave (CW) diode laser having a wavelength of 520 nm in CHCl3 solvent. The third-order nonlinear optical properties, such as the nonlinear refractive index (NLRI) n2, nonlinear absorption coefficient (NLAC) β, and nonlinear susceptibility χ(3), were measured at various solution concentrations and laser powers. The obtained values of n2, β, and χ(3) were estimated to be high, of the order of 10-7(cm2/W), 10-3 (cm/W), and 10-6 (esu), respectively. As a result, bis-chalcone (BBDP) is considered as a promising candidate for applications in nonlinear optical (NLO) devices and optical limiting (OL).
摘要：
Bis-Chalcone（BBDP）已通过N的缩合制备，N-二甲基苯甲醛和1,1'-([1,1'-联苯]-4,4'-二基)二(乙-1-酮)，用质谱对BBDP的结构进行了表征，13C-NMR,1H-NMR,和IR。物理化学性质，包括偶极矩，斯托克轮班,振荡器强度,通过在不同溶剂中的发射和吸光度研究了BBDP的介电常数和荧光量子产率。化合物(BBDP)在增加溶剂极性(从正己烷到DMSO)时显示红移。此外，我们利用了三叶草的三阶非线性光学特性，通过氯仿中的Z扫描技术进行了监考。用在CHCl3溶剂中具有520nm波长的连续波(CW)二极管激光器进行测量。三阶非线性光学性质,如非线性折射率(NLRI)n2、非线性吸收系数(NLAC)β、和非线性磁化率χ(3)，在各种溶液浓度和激光功率下测量。获得的n2，β，χ(3)估计很高，大约10-7(cm2/W)，10-3(cm/W),和10-6（esu），分别。因此,双查耳酮（BBDP）被认为是在非线性光学（NLO）器件和光限幅（OL）中应用的有前途的候选者。
