Hexacyanomanganate(III) mit Kryolithstruktur: Cs<sub>2</sub>NaMn(CN)<sub>6</sub> und Cs<sub>2</sub>KMn(CN)<sub>6</sub> / Hexacyanomanganates(III) with Cryolite Type Structure: Cs<sub>2</sub>NaMn(CN)<sub>6</sub> and Cs<sub>2</sub>KMn(CN)<sub>6</sub>
Abstrak
The crystal structures of the isotypic monoclinic cyano complexes Cs2NaMn(CN)6 (a = 759.7(1), b = 780.6(1), c = 1095.0(1) pm, β = 90.07(1)°) and Cs2KMn(CN)6 (a = 769.8(2), b = 820.4(1), c = 1120.7(2) pm, β = 90.25(1)°) have been refined from single crystal X-ray data in space group P21/n, Z = 2 (wR = 0.039 and 0.027, resp., using 1639 and 1732 independent reflections). The compounds are isostructural with cryolite, Na3AlF6, showing quite similar position parameters and nearly regular octahedra (average Mn—C= 198.8/199.6pm, C—N = 114.7/114.4pm for Na/K compound, resp.). The tilting of octahedra [Mn(CN)6]3—, [NaN6] (Na—N = 248.5 pm) and [KN6] (K—N = 280.0 pm) is compared to that of other cyano-cryolites and rationalized using radius ratio arguments in the form of a tolerance factor relation.
Penulis (3)
Bernd Ziegler
Robert Haegele
Dietrich Babel
Format Sitasi
Akses Cepat
- Tahun Terbit
- 1989
- Bahasa
- en
- Total Sitasi
- 9×
- Sumber Database
- CrossRef
- DOI
- 10.1515/znb-1989-0807
- Akses
- Open Access ✓