Synthese und Kristallstruktur von (PPh4)2Te4 / Synthesis and Crystal Structure of (PPh4)2Te4
1991 ◽
Vol 46
(8)
◽
pp. 1015-1019
◽
Keyword(s):
X Ray
◽
(PPh4)2Te4 has been prepared by the reaction of Na2Te3 with PPh4Cl in DMF solution in the presence of MnCl2 or FeCl2. The compound forms dark red crystals, which were characterized by IR spectroscopy as well as by an X-ray crystal structure determination (6109 observed independent reflections, R = 0.030). Crystal data: triclinic, space group PĪ, Z = 2, a = 1046.7(2), b = 1130.1(2), c = 1967.8(4) pm, α = 93.63(3), β = 90.43(3), γ = 108.89(3)° at —60 °C. The cations are grouped in pairs (PPh4+)2 around inversion centres, each pair being surrounded by eight Te42- ions, arranged as in the CsCl type lattice. The chain-like Te42- ions have no close contacts with one another.
1990 ◽
Vol 45
(10)
◽
pp. 1393-1397
◽
1990 ◽
Vol 45
(8)
◽
pp. 1210-1212
◽
1985 ◽
Vol 40
(4)
◽
pp. 562-564
◽
1998 ◽
Vol 53
(7)
◽
pp. 774-776
◽
2013 ◽
Vol 634-638
◽
pp. 2600-2604
1990 ◽
Vol 45
(8)
◽
pp. 1128-1132
◽
Keyword(s):
1987 ◽
Vol 42
(4)
◽
pp. 410-414
◽
Keyword(s):
2013 ◽
Vol 781-784
◽
pp. 571-575