title: Semiconducting tellurium-iron-copper carbonyl polymers.
abstract: The unprecedented ternary Te-Fe-Cu chain polymers [{Et4N}{TeFe3(CO)9Cu}]infinity and [{TeFe3(CO)9Cu2}(mu-4,4'-dipyridyl)1.5]infinity were prepared from the self-assembly of [Et4N]2[TeFe3(CO)9] with [Cu(MeCN)4][BF4] in THF or in the presence of 4,4'-dipyridyl in THF. These two chain polymers, which can also be constructed from the precursor complex TeFe3(CO)9Cu2(MeCN)2, show semiconducting behaviors with low band gaps of 0.59 and 0.41 eV, respectively. In addition, their conductivity and the effect of the bridging ligand are further elucidated by theoretical calculations.
authors.affiliation: Department of Chemistry, National Taiwan Normal University Taipei 116, Taiwan, Republic of China. mshieh@ntnu.edu.tw
authors.forename: Minghuey
authors.initials: M
authors.lastname: Shieh
authors.forename: Chia-Hua
authors.initials: CH
authors.lastname: Ho
authors.forename: Wen-Shyan
authors.initials: WS
authors.lastname: Sheu
authors.forename: Bo-Gaun
authors.initials: BG
authors.lastname: Chen
authors.forename: Yen-Yi
authors.initials: YY
authors.lastname: Chu
authors.forename: Chia-Yeh
authors.initials: CY
authors.lastname: Miu
authors.forename: Hsiang-Lin
authors.initials: HL
authors.lastname: Liu
authors.forename: Chih-Chiang
authors.initials: CC
authors.lastname: Shen
mesh_terms: D003198:Computer Simulation; D003300:Copper / Q000737:chemistry*; D018360:Crystallography, X-Ray; D007501:Iron / Q000737:chemistry*; D008956:Models, Chemical; D008958:Models, Molecular; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000737:chemistry*; D011108:Polymers / Q000737:chemistry*; D012666:Semiconductors; D013691:Tellurium / Q000737:chemistry*
chemical_list: D009942:Organometallic Compounds; D011108:Polymers; D003300:Copper; D007501:Iron; D013691:Tellurium