6533b7d1fe1ef96bd125d4e8
RESEARCH PRODUCT
ChemInform Abstract: Nb4Te17I4, a New Pseudo One-Dimensional Solid-State Polytelluride.
Wolfgang Tremelsubject
chemistry.chemical_compoundCrystallographychemistryChain (algebraic topology)Ternary compoundGroup (periodic table)AtomNiobiumchemistry.chemical_elementGeneral MedicineComposition (combinatorics)TelluriumMonoclinic crystal systemdescription
The new ternary compound Nb4Te17I4 has been prepared and structurally characterized. It crystallizes in the monoclinic system, space group C2/c with unit-cell parameters a = 16.199(4), b = 8.128(2), c = 27.355(6) A, β = 110.84(2)°, Z = 4. The structure consists of infinite one-dimensional niobium/tellurium chains running parallel to the crystallographic c direction. The chains are separated by iodine atoms. Short and long metal–metal distances alternate in the sequence of three consecutive short bonds ([d ≈ 3.1 – 3.2 A) and one long (d = 4.268 A) metal–metal separation. Each Nb atom is eight-coordinate. The composition of the chain is ∞11[(Nb5+)2(Nb4+)2(Te22−)4(Te32−)3(I−)4].
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-08-19 | ChemInform |