Luminescent One‐Dimensional Nanoscale Materials with Pt^II⋅⋅⋅Pt^II Interactions

Synthesis of a new T-shaped heterobinuclear Pt0-AuI complex [(t-Bu3P)2PtAu(PPh3)]BF4 from trinuclear gold cluster complex [(PPh3)Au]3(-O)BF4

“…This distance is shorter than those found in previously reported non T-shaped platinum(0)-gold(I) complexes [9] and in the reported range for T-shaped platinum(0)-gold(I) complex 3 (2.569 A) [8]. The [(t-Bu) 3 P) 2 PtAu] unit displays a slightly distorted Tshaped geometry around the Pt atom (P-Pt-P angle 172:5 ) with the Au-Pt vector roughly perpendicular to the P-Pt-P axis (tilted by 3 with respect to the normal line of the P-Pt-P axis). The [PtAu(PPh 3 )] unit displays a slightly distorted linear geometry around the Au center (P-Au-Pt angle 172 ) and the Au-P distance is 2.25 A.…”

“…[(t-Bu 3 P) 2 Pt], PPh 3 , and NaBF 4 were purchased from commercial sources, and AuCl(SMe 2 ) and AuCl(PPh 3 ) were prepared as described previously [10,11]. Crystal data and re nement parameters for 5 are given in Table 2.…”

“…Metal-metal bonding occupies a prominent position in inorganic chemistry and the study of compounds containing the metal-metal interactions has been the subject of signi cant interest because of their potential applications in many elds, such as material chemistry [1] and the optoelectronic devices [2]. It is now well recognized that metal centers in some complexes or fragments can act as a nucleophile or Lewis base [3].…”

“…Continuing our interest in the synthesis of the bi and multiheteronuclear complexes, herein, we describe the preparation and crystal structure analysis of the new T-shaped heterobinuclear Pt 0 -Au I complex [(t-Bu 3 P) 2 (0) center. Complex 5 is a yellow solid that is stable in acetone solutions for several hours and fully characterized by multinuclear NMR spectroscopy and elemental microanalysis, which will be described in the Experimental Section.…”

Chromo- and Fluorogenic Organometallic Sensors

“…Rod-like crystals over 500 mm in length have been obtained for the analogue cis-[Pt (CN t Bu) 2 (CN) 2 ] using an injection-reprecipitation method. These Pt II -Pt II stacked 'wires' exhibit intense green emission which shifts significantly, and/or increases in intensity, on exposure to VOCs [87]. [Pt(CN) 2 (4,4 0 -dicarboxy-2,2 0 -bpy)] forms several intensely coloured polymorphs depending on pH and crystallization solvents.…”