Formation of an unusual tetralithium diplatinum complex [Pt(CCBut)2(PPh2O)2Li2(μ-H2O)(Me2CO)2]2 containing μ3-PPh2O− Ligands

Structural and Functional Evolution of Metallacrowns

“…446 A 12-MC Li 2 Pt II 2 -4 has been made with diphenylphospine providing the P-O bridge (Figure 53). 447 The 12-MC-4 binds a {Li 2 -(µ-H 2 O) 2 } 2+ moiety within the central cavity with the four phosphoryl oxygen atoms.…”

“…Platinum with R , S -C 6 H 5 P(O)CH 2 CH 2 P(O)C 6 H 5 generates a vacant 12-MC-4 with two bridging groups between each Pt II ion, O−P and P−O . A 12-MC Li 2 Pt II 2 -4 has been made with diphenylphospine providing the P−O bridge (Figure ) . The 12-MC-4 binds a {Li 2 (μ-H 2 O) 2 } 2+ moiety within the central cavity with the four phosphoryl oxygen atoms.…”

“…The coordination of the Pt II is completed by two CtCC(CH 3 ) 3 ligands, and the coordination of the ring Li + is completed by two (OC(CH 3 ) 2 ) groups.Color scheme: aqua sphere, central Li + ; magenta sphere, ring Li + ; orange sphere, Pt II ; blue tube, nitrogen; gray line, carbon. Hydrogen atoms have been removed for clarity 447.…”

Influence of Solvent and Weak C−H···O Contacts in the Self-Assembled [Pt2M4{C⋮C(3-OMe)C6H4}8] (M = Cu, Ag) Clusters and Their Role in the Luminescence Behavior

“…Our group has long been interested in homo- and heteropolymetal alkynyl platinum complexes, − and one of our current research interests is the use of alkynyl platinate(II) substrates such as the homoleptic [Pt(C⋮CR) 4 ] 2- derivatives , as building blocks in molecule-based materials. ,,− Diverse Pt−M with closed (M = Cu, Ag, Au, Cd) 35,42-47 or subclosed shell (Tl(I)) , heteropolynuclear cluster complexes, which exhibit intriguing photophysical properties associated with metal−metal and η 2 -bonding interactions, have been prepared. A similar synthetic strategy has been also employed by Yam et al , and more recently by Chen et al , to form luminescent heteropolynuclear platinum−copper or silver complexes.…”

Structural characterization of heterometallic platinum complexes with non-transition metals. Part IV. Heteropenta- and heterohexanuclear complexes

“…In another triclinic colorless Pt 2 Li 4 hexanuclear complex (Falvello et al, 1998), the molecule is formed by two identical OPPh 2 { Pt(C ≡ CBu t ) 2 } PPh 2 O fragments, which act as bidentate ligands bridging the four Li(I) centers pairwise through the O atoms, giving two planar { Li 2 O 2 } rings, which are rigorously coplanar. The central Li (2) and Li(2 ′ ) atoms are double-bridged by two water molecules.…”