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CAS RN: 917-23-7 | Product Number: T1359

Tetraphenylporphyrin (Chlorin free)


Purity: >98.0%(HPLC)
Synonyms:
  • Tetraphenylporphine (Chlorin free)
  • TPP (Chlorin free)
Documents:
1G
82,00 €
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Product Number T1359
Purity / Analysis Method >98.0%(HPLC)
Molecular Formula / Molecular Weight C__4__4H__3__0N__4 = 614.75  
Physical State (20 deg.C) Solid
Store Under Inert Gas Store under inert gas
Condition to Avoid Air Sensitive
CAS RN 917-23-7
Reaxys Registry Number 379542
PubChem Substance ID 87577126
MDL Number

MFCD00011680

Specifications
Appearance Orange to Brown to Dark purple powder to crystal
Purity(HPLC) min. 98.0 area%
Tetraphenylchlorin max. 0.5 %
Properties (reference)
GHS
Related Laws:
EC Number 213-025-9
Transport Information:
HS Number 2933998090
Application
Molecular-weight Controlled Polymerization Using Aluminum-porphyrins

Typical Procedure:
The flask containing tetraphenylporphine ((TPP)H2)(1.0 mmol) is purged with dry N2, and then CH2Cl2 (20 mL) is introduced to dissolve (TPP)H2. To this solution is added Et2AlCl (1.2 mmol, 20% excess to (TPP)H2) by syringe under a N2 atmosphere at room temperature with stirring. After a definite time, the volatile materials are removed from this reaction mixture under reduced pressure to give a purple solid (TPP)AlCl) with metallic luster. CH2Cl2 (20 mL) is introduced to this flask to dissolve the product, to obtain the catalyst solution.
To the catalyst solution ((TPP)AlCl 20.4 mM) with stirring is added β-propiolactone (6.12 mol) by syringe at room temperature in a N2 atmosphere. After a definite time, a large excess of methanol is added to the reaction mixture to stop the polymerization, and then volatile materials are removed under reduced pressure to leave the product. The polymer is isolated as a slightly yellow-green powder by precipitation of the product from chloroform/methanol after shaking the chloroform solution with dilute hydrochloric acid.
The gel permeation chromatogram (GPC) of the resulting polymer shows the weight average molecular weight to the number average molecular weight (Mw/Mn) : 1.26 and the number average molecular weight (Mn) : 3500.

References


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