Synthesis and Characterization of a Novel 1D Ho(III) Framework Containing Infinite Right- and Left-Handed Helical Ho-O-Ho Linkage

摘要

Under hydrothermal conditions using a flexible ligand 2,2a?2 -diphenyl dicarboxylate acid (H₂L) and Ho₂O₃, a novel one-dimensional(1D) Ho(III) complex [Ho₂L₃(H₂O)₂]_n (1) containing 8-coordinated Ho(III) centers (Ho1 and Ho2) can be isolated. L2 a?? ligands adopt two kinds of bridging coordination modes: symmetry four-coordinated and asymmetry five-coordinate modes. Interestingly, Ho1 and Ho2 are bridged by L2 a?? ligands forming two kinds of different 1D chains, in which infinite right- and left-handed helical Ho-O-Ho linkage can be observed. TGA, FT-IR and elemental analysis of 1 were also investigated.View full textDownload full textKeywords2,2a?2-diphenyl dicarboxylate acid, helical, Ho-O-Ho linkage, TGARelated var addthis_config = { ui_cobrand: "Taylor & Francis Online", services_compact: "citeulike,netvibes,twitter,technorati,delicious,linkedin,facebook,stumbleupon,digg,google,more", pubid: "ra-4dff56cd6bb1830b" }; Add to shortlist Link Permalink http://dx.doi.org/10.3109/10799890903555574