912540-35-3

Basic information

• Product Name: [Pt₂(2,2':6',2''-terpyridine(-2H))(Cl)2(PCy₃)2]
• CAS NO: 912540-35-3
• Molecular Weight: 1253.19
• Mol File: 912540-35-3.mol
• Article Data: 1

Chemical Properties

• CAS DataBase Reference: [Pt₂(2,2':6',2''-terpyridine(-2H))(Cl)2(PCy₃)2](CAS DataBase Reference)
• NIST Chemistry Reference: [Pt₂(2,2':6',2''-terpyridine(-2H))(Cl)2(PCy₃)2](912540-35-3)
• EPA Substance Registry System: [Pt₂(2,2':6',2''-terpyridine(-2H))(Cl)2(PCy₃)2](912540-35-3)

Safety Data

• Hazardous Substances Data: 912540-35-3(Hazardous Substances Data)

Upstream product

• 335370-67-7 [Pt₂(2,2':6',2''-terpyridine(-2H))(Me)2(DMSO)2] 
• 912540-32-0 [Pt₂(2,2':6',2''-terpyridine(-2H))(Cl)2]2 
• 2622-14-2 tricyclohexylphosphine 
• 912540-31-9 [Pt₂(2,2':6',2''-terpyridine(-2H))(Cl)2(DMSO)2] 

Relevant articles and documents

Dinuclear platinum(II) complexes with bridging twofold deprotonated 2,2′:6′,2″-terpyridine. New molecules with a 3,5-diplatinated-pyridyl inner core: [Pt2(terpy-2H)(Me)2(L)2], [Pt2(terpy-2H)(X)2(L)2]

A series of dinuclear platinum complexes where the metal ions are linked by a twofold deprotonated 2,2′:6′,2″-terpyridine (terpy) has been synthesized. Reaction of cis-[Pt(Me)2(DMSO)2] with terpy in toluene at 90 °C (molar ratio Pt:terpy 2:1) results in activation of the C(3)- and C(5)-H bonds of the inner pyridinic ring to give the cyclometalated dinuclear derivative [Pt2(terpy-2H)(Me)2(DMSO)2] (1a), (trans Me-Pt-N). From complex 1a, substitution of DMSO with neutral two-electron donors, L, allows isolation of a number of new species [Pt2(terpy-2H)(Me)2(L)2] with the same N,C∧C,N bridging ligand. The "Pt2(terpy-2H)" fragment is very robust: it is not affected by alkylating reagents such as MeI or acids such as HPF6 or even HCl. Nevertheless the latter acid cleaves the Pt-Me bond affording another series of complexes having a chloride in place of a methyl, [Pt2(terpy-2H)(Cl)2(L)2], (trans-Cl-Pt-C). The structure of complex 7, [Pt2(terpy-2H)(Cl)2(PPh3)2], has been solved by X-ray analysis: the platinum atoms are in a tetrahedrally distorted square planar coordination. The inner framework of the molecule is not flat: the dihedral angle between the best planes of the metal ions is 37.2(1)°. The coordinated chlorides can be abstracted to give cationic solvento derivatives or exchanged with other anions such as iodides. Exchange with [BH4]- allows to obtain the corresponding hydrides, examples of very rare C,N cyclometalated platinum(II) hydrides. Finally a two step approach allows the synthesis of unsymmetric derivatives, [Pt2(terpy-2H)(Cl)2(L)(L′)], with different ligands around each platinum atom. The surprising deprotonation of terpy, typically a neutral ligand, points to the potential of the "Pt(Me)2" fragment in the intramolecular C-H bond activation.