Hai-Ying Bie

Syntheses, characterization and optical properties of some copper(I) halides with 1,10-phenanthroline ligand

The hydrothermal reactions of CuX2 or CuX with phen (1,10-phenanthroline) have resulted in the syntheses of eight compounds 1–8. In these, 1∶1 adducts of CuX/phen are reported: ionic [Cu(phen)2][CuX2] (X=Cl 1, Br 2) and dimer [Cu2I2(phen)] 3; the trinuclear clusters [Cu3X3(phen)2] (X=Br 5, I 7) were first prepared and the structures can be best described as 1∶1 adducts of dimers and CuX; the chain compounds 6 and 8 belong to the same series with the formula [CuX2L] (L=organic ligand), but the chain arrangement is different; the structure of 4 is yet being refined. Compounds 1–8 have a high thermal stability. The third-order nonlinear optical properties of compounds 5, 6 and 8 were investigated and all exhibit a reverse saturable absorption (α2>0) and self-defocusing performance (n2<0).

Synthesis, crystal structure and non-linear optical properties of a new cyanide-containing compound

Reaction of K3[Fe(CN)6], NiCl2 and diethylenetriamine (dien) resulted in the formation of a cyanide-containing heterometallic compound [Ni(dien)2]2[Fe(CN)6]·4H2O 1. The structure consists of two octahedral [Ni(dien)2]2+ cations, one octahedral [Fe(CN)6]4− anion and four crystallization water molecules, which are held together by hydrogen-bonding interactions. Its TG curve exhibits two stages of mass loss. Compound 1 in DMF solutions has a very strong third-order non-linear optical (NLO) behavior with an absorption coefficient and refractive index α2 = 1.10 × 10−11 m w−1, n 2 = −3.05 × 10−19 m2 w−1, respectively, and third-order NLO susceptibility χ(3) 4.34 × 10−13 esu.