Synergistic flame retardancy of bis(1-methoxy-2,2,6,6-tetramethylpiperidin-4-yl)sebacate and aluminium hypophosphite/melamine hydrobromide in PP

Key Words:zinc(II) complex; bis(benzimidazoles); crystal structure; photoluminescenc

Abstract:A complexe [Zn(OBimB)Cl-2]center dot DMF center dot H2O based on a rigid bis(benzimidazoles) ligand OBimB (OBimB=1,2-bis(2-benzimidazolyl)benzene) has been synthesized and structurally characterized by X-ray single crystal diffractometry. The complex crystallizes in monoclinic system, P2(1)/c space group with the cell parameters of a= 1.251 22(9) nm, b=1.039 80(7) nm, c=1.827 94(11) nm, beta=95.508(2)degrees, V=2.367 2(3) nm(3), Z=4, and D-c=1.509 g.cm(-3), the final R-1=0.043 0, wR(2)=0.093 9. In the structure of the complex the Zn atom is coordinated by two N atoms from a twisted V-shape conformational OBimB ligand and two Cl- anions in a distorted tetrahedral geometry. The photoluminescence measurements of the ligand and the complex show that the emissions are assigned to the intraligand fluorescence. CCDC: 861572.

Volume:28

Issue:11

Translation or Not:no