2026-09-18T21:15:45Zhttps://wakespace.lib.wfu.edu/server/oai/request

oai:null:10339/364332026-09-02T09:14:39Zcom_10339_14934col_10339_38132

CHEN, LEI 2012-01-18T09:35:31Z 2013-01-18T09:30:07Z 2011 https://wakespace.lib.wfu.edu/handle/10339/36433 This dissertation work focuses on the use of cyanide-functionalized paramagnetic cluster [(Ta6Cl12i)(CN)12a]3- with valence electron per cluster (VEC) = 15 as molecular building blocks of coordination polymers. Apical cyanide ligands are used as bridging ligands between the cluster and other molecular building blocks for the preparation of supramolecular assemblies with different dimensions. Using the self-assembly approach, eight new compounds were synthesized and their crystal structures have been determined from sing crystal X-ray diffraction. Two salts [La(DMF)(MeOH)1.5(H2O)0.5Ta6Cl12(CN)6]*DMF (1) and Sm(H2O)2(DMF)Ta6Cl12(CN)6 (2) were synthesized using the anion [Ta6Cl12(CN)6]3- and solutions of La3+ and Sm3+. Both 1 and 2 precipitated quickly due to extremely low solubility of the products in the solvent system used, thus the products lacked crystallinity. The introduction of bridging ligand 4,4'-dipyridyl N,N'-dioxide (dpdo) enabled the formation of three extended frameworks [Eu(dpdo)(H2O)5(EtOH)2] [Ta6Cl12(CN)6]*dpdo*H2O* 4MeOH (3), en Wake Forest University COORDINATION POLYMERS HOST-GUEST INTERACTIONS OCTAHEDRAL METAL CLUSTERS SYNTHESIS CHARACTERIZATION Tantalum cluster OCTAHEDRAL METAL CLUSTERS AS MOLECULAR BUILDING BLOCKS OF COORDINATION POLYMERS: SYNTHESIS, CHARACTERIZATION, AND STUDY OF THEIR HOST-GUEST INTERACTIONS Thesis Lachgar, Abdessadek King, S. Bruce Noftle, Ronald E Chemistry 2013-01-18 open.access