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1718-45-2

Tetra-p-tolylplumbane, also known as tetraphenylplumbane, is an organoplatinum compound with the chemical formula (C6H5)4Pb. It is a white crystalline solid that is insoluble in water but soluble in organic solvents. tetra-p-tolylplumbane is characterized by its tetrahedral structure, with a central lead (Pb) atom bonded to four phenyl rings. Tetra-p-tolylplumbane is primarily used in chemical research and as a precursor in the synthesis of other organoplatinum compounds. Due to its potential toxicity and environmental impact, it is important to handle tetra-p-tolylplumbane with care and in accordance with proper safety protocols.

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  • 1718-45-2 Structure

  • Basic information

    1. Product Name: tetra-p-tolylplumbane
    2. Synonyms: tetra-p-tolylplumbane
    3. CAS NO:1718-45-2
    4. Molecular Formula:
    5. Molecular Weight: 571.73
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 1718-45-2.mol

  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: N/A
    3. Flash Point: N/A
    4. Appearance: N/A
    5. Density: N/A
    6. Refractive Index: N/A
    7. Storage Temp.: N/A
    8. Solubility: N/A
    9. CAS DataBase Reference: tetra-p-tolylplumbane(CAS DataBase Reference)
    10. NIST Chemistry Reference: tetra-p-tolylplumbane(1718-45-2)
    11. EPA Substance Registry System: tetra-p-tolylplumbane(1718-45-2)

  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 1718-45-2(Hazardous Substances Data)

1718-45-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1718-45-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,7,1 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1718-45:
(6*1)+(5*7)+(4*1)+(3*8)+(2*4)+(1*5)=82
82 % 10 = 2
So 1718-45-2 is a valid CAS Registry Number.

1718-45-2Relevant articles and documents

Central-atom size effects on the methyl torsions of group XIV tetratolyls

Ng, Maggie C. C.,Harper, Jason B.,Stampfl, Anton P. J.,Kearley, Gordon J.,Rols, Stephane,Stride, John A.

supporting information, p. 13018 - 13024 (2013/01/15)

The Group XIV tetratolyl series X(C6H4-CH 3)4 (X=C, Si, Ge, Sn, Pb) were studied by using inelastic neutron scattering to measure the low-energy phonon spectra to directly access the methyl-group torsional modes. The effect of increased molecular radius as a function of the size of the central atom was shown to have direct influence on the methyl dynamics, reinforced with the findings of molecular dynamics and contact surface calculations, based upon the solid-state structures. The torsional modes in the lightest analogue were found to be predominantly intramolecular: the Si and Ge analogues have a high degree of intermolecular methyl-methyl group interactions, whilst the heaviest analogues (Sn and Pb) showed pronounced intermolecular methyl interactions with the whole phonon bath of the lattice modes. Size matters! The size of the central atom in the Group XIV tetratolyls was shown to determine the solid-state structures courtesy of the effect that it has on the overall size of the molecules (see figure). Because the outer-most methyl groups enter into close intermolecular interactions (for the Si and Ge analogues), the structure is driven to lower symmetry; as a consequence, the smallest (C) and largest (Sn and Pb) analogues are isostructural. Copyright

Ueber Tetraaryl-Methan-Analoga in der Gruppe 14.III. Ar4Sn/Pb (Ar=Ph, p-, m-, o-Tol, 2,4-Xyl und 2,5-Xyl): Gegenueberstellung von Bindungslaengen und Winkeln, von NMR chemischen Verschiebungen und Kopplungskonstanten und von Schwingungsdaten

Schneider-Koglin, Claudia,Mathiasch, Bernd,Draeger, Martin

, p. 25 - 32 (2007/10/02)

The title compounds have been synthesized Grignard reactions or pyrolysis of diplumbanes respectively.The crystal structures of m-Tol4Pb and Ph4Pb (redetermination) have been determined.All eight compounds (Ph/Tol)4(Sn/Pb) are S4 symmetric and contracted along this unique axis.The 13C-NMR chemical shifts and the couplings 1J(119Sn/207Pb-13C) as well depend additively upon the methyl substituents.The ratios 1K(207Pb-13C):1K(119Sn-13C) of the reduced coupling constants are all near to 1.61; a comparison with values from the literature for alkyl, alkenyl and alkinyl substituents is given.The ratio δ(207Pb):δ(119Sn) results in 2.28.IR (700 down to 200 cm-1) and Raman (700 down to 50 cm-1) data are given.Key words: Tin; Lead; Group 14; Vibrational data; Nuclear magnetic resonance; Crystal structure

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