Cas 173692-99-4,[3,3-(PMe2Ph)2-closo-3,1,2-PtC2B9H11]

173692-99-4

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Basic information

Product Name: [3,3-(PMe₂Ph)2-closo-3,1,2-PtC₂B₉H₁₁]
Synonyms:
CAS NO:173692-99-4
Molecular Formula:
Molecular Weight: 603.787
EINECS: N/A
Product Categories: N/A

Chemical Properties

Melting Point: N/A
Boiling Point: N/A
Flash Point: N/A
Appearance: N/A
Density: N/A
Refractive Index: N/A
Storage Temp.: N/A
Solubility: N/A
CAS DataBase Reference: [3,3-(PMe₂Ph)2-closo-3,1,2-PtC₂B₉H₁₁](CAS DataBase Reference)
NIST Chemistry Reference: [3,3-(PMe₂Ph)2-closo-3,1,2-PtC₂B₉H₁₁](173692-99-4)
EPA Substance Registry System: [3,3-(PMe₂Ph)2-closo-3,1,2-PtC₂B₉H₁₁](173692-99-4)

Safety Data

Hazard Codes: N/A
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Safety Statements: N/A
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RTECS:
HazardClass: N/A
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Hazardous Substances Data: 173692-99-4(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 173692-99-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,6,9 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 173692-99:
(8*1)+(7*7)+(6*3)+(5*6)+(4*9)+(3*2)+(2*9)+(1*9)=174
174 % 10 = 4
So 173692-99-4 is a valid CAS Registry Number.

173692-99-4Upstream product

173692-99-4Downstream Products

173693-00-0 [(P(CH₃)2C₆H₅)2PtC₂B₉H₁₁]

173692-99-4Relevant academic research and scientific papers

The relationship between the molecular structure of and the mechanism of the fluxional behaviour of M(PR3)2-units in closo-twelve-atom metallaheteroboranes

O'Connell, Donnacha,Spalding, Trevor R.,Ferguson, George,Gallagher, John F.,Kennedy, John D.

, p. C12 - C15 (1995)

The upper limit of the free energy of the barrier to rotation of the platinum bis-phosphine unit in 1 is -1 in dichloromethane solution.This relatively low value is similar in magnitude to crystal-packing forces, and compound 1 crystallises from CH2Cl2-hexane solution as a 1:1 mixture of two different conformers with significantly different, platinum-to-C2B3 bonding.These observations lead to the proposal of a general mechanism for the mutual rotation of units above C2B9H11.Keywords: Platinum; Carborane; Metallacarborane; Fluxionality; Crystal structure; Mechanism.

Conformational polymorphism and fluxional behaviour of M(PR3)2 units in closo-twelve-atom metallaheteroboranes with MX2B9 (X = C or As) and MZB10 cages (Z = S, Se or Te)

O'Connell, Donnacha,Patterson, Jennifer C.,Spalding, Trevor R.,Ferguson, George,Gallagher, John F.,Li, Yiwei,Kennedy, John D.,Macias, Ramon,Thornton-Pett, Mark,Holub, Josef

, p. 3323 - 3333 (2007/10/03)

The compounds [3,3-(PEt3)2-closo-3,1,2-PtAs2B 9H9] 1 and [2,2-(PMe2Ph)2-closo-2,1-PtSB10H10] 2 were synthesised and characterised by NMR spectroscopy and X-ray crystallography. Crystals of 1 exhibit conformational polymorphism with five conformers of the Pt(PEt3)2 unit above the As2B3 face; those of 2 contain single conformers. The free energy of the barrier to rotation of the Pt(PMe2Ph)2 unit above the SB10 cage ligand in 2 has been determined in chloroform solution and is compared with data from other platinum and palladium metallaheteroboranes containing C2B9H11, As2B9H9, SeB10H10 and TeB10H10 ligands. A mechanism for the rotation of M(PR3)2 units above heteroborane ligand faces is suggested. It involves shifting the M(PR3)2 unit via ηn-bonded species (n a concomitant twisting of the M(PR3)2 unit about an axis passing approximately through the metal atom and the antipodal B atom.

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