Welcome to LookChem.com Sign In|Join Free

CAS

  • or

17878-20-5

Post Buying Request

17878-20-5 Suppliers

Recommended suppliersmore

  • Product
  • FOB Price
  • Min.Order
  • Supply Ability
  • Supplier
  • Contact Supplier

17878-20-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17878-20-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,8,7 and 8 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 17878-20:
(7*1)+(6*7)+(5*8)+(4*7)+(3*8)+(2*2)+(1*0)=145
145 % 10 = 5
So 17878-20-5 is a valid CAS Registry Number.

17878-20-5Downstream Products

17878-20-5Relevant articles and documents

Dynamics of Positive Charge Carriers on Si Chains of Polysilanes

Seki, Shu,Koizumi, Yoshiko,Kawaguchi, Tomoyo,Habara, Hidefumi,Tagawa, Seiichi

, p. 3521 - 3528 (2004)

The transient absorption of radical cations of a variety of substituted polysilanes is discussed quantitatively in terms of the molar extinction coefficient and oscillator strength by nanosecond pulse radiolysis. Oxygen-saturated polysilane solutions in benzene exhibit a strong transient absorption band ascribed to the polysilane radical cation. The transient species react with N,N,N′,N′-tetramethyl-p-phenylenediamine (TMPD) to produce TMPD radical cations. On the basis of the molar extinction coefficient of the TMPD radical cation, the molar extinction coefficients for the radical cations of polysilanes are found to increase in the range 3.3 × 104 to 2.0 × 105 M-1 cm -1 with increasing polymer segment length. The stepwise increase in the total oscillator strength with an increase in the number of phenyl rings directly bonded to the Si skeleton suggests the delocalization of the positive polaron state and/or the SOMO state over the phenyl rings, indicating the importance of phenyl rings in intermolecular hole transfer processes.

Post a RFQ

Enter 15 to 2000 letters.Word count: 0 letters

Attach files(File Format: Jpeg, Jpg, Gif, Png, PDF, PPT, Zip, Rar,Word or Excel Maximum File Size: 3MB)

1

What can I do for you?
Get Best Price

Get Best Price for 17878-20-5