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Synthesis of the One-dimensional Compound (Ph4P)[In(P2Se6)] in a Ph4P+-Containing Selenophosphate Flux, and Structure of [In(P2Se6)2]5– – a Discrete Molecular Fragment of the [In(P2Se6)]nn– Chain

✍ Scribed by Konstantinos Chondroudis; Debojit Chakrabarty; Enos A. Axtell; Mercouri G. Kanatzidis

Publisher
John Wiley and Sons
Year
1998
Tongue
German
Weight
137 KB
Volume
624
Category
Article
ISSN
0372-7874

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✦ Synopsis

The reaction of one equivalent of In with a molten flux of (Ph 4 P) 2 Se 5 and P 2 Se 5 (1 : 2), at 250 °C gave the (Ph 4 P)[In(P 2 Se 6 )] (I). Stoichiometric elemental synthesis at 750 °C produced the Cs 5 In(P 2 Se 6 ) 2 (II). The thin, yellow crystals of (I), and the irregular, dark orange crystals of (II), appear to be air-and water-stable. Compound (I) crystallizes in the monoclinic space group C2/c (no. 15) and at 23 °C:

Compound (II) crystallizes in the tetragonal space group P4 2 /m (no. 84) and at 23 °C: a = b = 13.886(1) A Ê , c = 7.597(2) A Ê , V = 1464.9(3) A Ê 3 , Z = 2, final R/R w = 3.9/ 5.1%. Compound (I) contains infinite [In(P 2 Se 6 )] n n± with a structure related to that of K 2 FeP 2 Se 6 . Compound (II) contains the discrete [In(P 2 Se 6 ) 2 ] 5± which can be viewed as a fragment of the [In(P 2 Se 6 )] n n± chain.

📜 SIMILAR VOLUMES

Two New Carbon-Free Indium(III) Asymmetr
Two New Carbon-Free Indium(III) Asymmetric Chelates – Synthesis and X-ray Crystal Structures of [In{Ph2P(O)NP(S)Ph2-O,S}3]·3/4 C6H6 and [InCl{Ph2P(S)NP(Se)Ph2-S,Se}2]
✍ Raymundo Cea-Olivares; Rubén A. Toscano; Simón Hernández-Ortega; Josef Novosad; 📂 Article 📅 1999 🏛 John Wiley and Sons 🌐 English ⚖ 253 KB 👁 2 views

The ligands [Ph 2 (S)PNHP(X)Ph 2 ] -(X = O, Se) react with InCl 3 coordination geometry in 2 resembles that observed in the three analogous tris-chelates incorporating the corres-in a 3:1 ratio to give a tris-chelate [In{Ph 2 P(O)NP(S)Ph 2 -O,S} 3 ]•0.75 C 6 H 6 (2) and the unexpected pentacoordinat