19184-32-8

Basic information

• Product Name: {Pten₂Cl₂}⁽²⁺⁾
• CAS NO: 19184-32-8
• Molecular Weight: 386.184
• Mol File: 19184-32-8.mol
• Article Data: 2

Chemical Properties

• CAS DataBase Reference: {Pten₂Cl₂}⁽²⁺⁾(CAS DataBase Reference)
• NIST Chemistry Reference: {Pten₂Cl₂}⁽²⁺⁾(19184-32-8)
• EPA Substance Registry System: {Pten₂Cl₂}⁽²⁺⁾(19184-32-8)

Safety Data

• Hazardous Substances Data: 19184-32-8(Hazardous Substances Data)

Upstream product

• 19184-30-6 bis(1,2-diamino-ethane)-platinum(II) ⁽²⁺⁾ 

Downstream Products

• 30032-51-0 tris(2,2'-bipyridine)osmium(III)⁽³⁺⁾ 

Relevant articles and documents

Kinetics and mechanism for reduction of trans-dichloro-tetracyanoplatinate(IV) by tetraammineplatinum(II) and bis (ethylenediamine) platinum(II)

Reduction of trans-[Pt(CN)4Cl2]2- by [Pt(NH3)4]2+ and [Pt(en)2]2+ was studied at 25°C in the range 0 ≤ [Cl-] ≤ 0.4 M by use of stopped-flow spectrophotometry. The stoichiometry [Pt(IV)]:[Pt(II)] is 1:1. Rapid-scan spectra show clear-cut isosbestic points, indicating that no reaction intermediates are accumulated to a significant amount. For pseudo first-order conditions with excess Pt(II), the observed rate constants can be expressed as kobsd=(k1+k2K[Cl-]) [Pt(II)], with k1=400±10 and (3.3±0.4) × 103 M-1 s-1, and k2K=(3.25±0.04) × 104 and (6.67±0.07) × 105 M-2 s-1 at 25 °C for reduction by [Pt(NH3)4]2+ and [Pt(en)2]2+, respectively. The mechanism involves two parallel reaction pathways. The analysis of the ionic strength dependence of k1, together with the rapid-scan spectra, implies that reduction of trans-[Pt(CN)4Cl2]2- by these Pt(II) complexes takes place directly via chloride-bridged transition states of the type [H2O...PtII...Cl...Pt IV...Cl] ≠ for the k1 pathway, or [Cl...PtII...Cl...PtIv...Cl] ≠ for the k2 path. The higher reaction rate of [Pt(en)2]2+ compared with [Pt(NH3)4]2+ is due to a higher electron density in the dz2 orbital making it more readily available to accommodate the Cl+ leaving from the platinum(IV). The redox rates depend strongly on the thermodynamic driving force, reflecting a significant weakening of the Cl-PtIv bonds in the transition states. The much faster reduction of [Pt(CN)4Cl2]2- compared with Pt(IV) ammine complexes previously studied is rationalized in terms of transition state stabilization due to the strong σ-donor and π-acceptor properties of cyanide.