Ag8Cl2[Se2P(OEt)2]6: A rare example containing a combination of discrete clusters and chainsElectronic supplementary information (ESI) available: analytical data for compounds 1 and 2. See http://www.rsc.org/suppdata/cc/b3/b300887h/

Abstract

The novel halide-centered Ag(I)8 cubic clusters containing diethyl diselenophosphato ligands are prepared and their solid state structures, a discrete unit or a one-dimensional chain, are dictated by the counter anions.

Selenium-Centered, Undecanuclear Silver Cages Surrounded by Iodo and Dialkyldiselenophosphato Ligands. Syntheses, Structures, and Photophysical Properties

“…The P−Se distances average 2.158 Å. The Se···Se “bite” distances average 3.757 Å and are slightly shorter than those (3.805−3.818 Å) found in the Ag 8 cube . The remaining three, where hinge positions are the heights of the prism, are each capped by a triply bridging iodide atom over an alternating set of three of the six triangular faces (Figure b).…”

“…Several cubic clusters encapsulating S 2- , Cl - , and Br - are known for a dithiophosphate ligand . For the corresponding diselenophosphate ligands, our research group has reported selenide-centered cubes, [Cu 8 (μ 8 -Se){Se 2 P(O i Pr) 2 } 6 ] 8 and [Ag 8 (μ 8 -Se){Se 2 P(O i Pr) 2 } 6 ], as well as halide-centered cubes, [Cu 8 (μ 8 -X){Se 2 P(OR) 2 } 6 ](PF 6 ) 10 and [Ag 8 (μ 8 -X){Se 2 P(OR) 2 } 6 ](PF 6 ) (X = Cl, Br) . Recently, we have reported a novel nonacoordinated selenide in a tricapped trigonal-prismatic geometry in a Cu 11 cluster where 11 copper atoms adopt a pentacapped trigonal-prismatic geometry. 10b, Clusters or cages having the geometry of a pentacapped trigonal prism are not common .…”

Syntheses, Structures, and VT NMR Studies of Diselenophosphates of Group 14 Organometals. DFT Calculations for Gas-Phase Stability of Dinuclear Ions, [(Ph3M)2{μ-Se, Se-P(OR)2}]+(M = Ge, Sn, and Pb)

“…Four coordination modes of diselenophosphates have been identified in their metal complexes (II−V, Chart ), − and mode I is being reported for the first time in this paper. In view of our interest to develop coordination chemistry of diselenophosphates as ligands and also after finding very interesting polynuclear complexes with Cu I , Ag I , and Zn II , − we were curious to look into main group elements.…”

“…Four coordination modes of diselenophosphates have been identified in their metal complexes (II−V, Chart ), − and mode I is being reported for the first time in this paper. In view of our interest to develop coordination chemistry of diselenophosphates as ligands and also after finding very interesting polynuclear complexes with Cu I , Ag I , and Zn II , − we were curious to look into main group elements. In this respect, indium(III) formed octahedral, tris-chelated complexes, In[Se 2 P(OR) 2 ] 3 , which in solution state showed lability of the In−Se bonds, and in order to explore the generality of this observation, we were interested in investigating the interaction of dsep ligands with group 14 metals.…”

“…Diselenophosphates [dsep, Se 2 P(OR) 2 - ] have been known since 1968, but their coordination chemistry remained ignored, probably because of their oxidation and extrusion of Se from the ligand. − In the past decade Liu et al have demonstrated the novelty of diselenophosphates by studying their coordination chemistry, particularly with elements from groups 11−13, and by preparing several unusual clusters and polynuclear compounds. − There are only two structurally characterized compounds among elements other than groups 11−13, namely, [Mo 3 (μ 3 -Se)(μ 2 -Se 2 ) 3 {Se 2 P(OEt) 2 } 3 ](Br) 5 and Ni[Se 2 P(OEt) 2 ] 2 . In sharp contrast, many studies on compositions and structures of complexes of analogous phosphor-1,1-dithiolate ligands have been reported. − …”