Detail of "1586-91-0"

CAS Number:
1586-91-0
Name:
Trityl hexachloroantimonate
Molecular Structure:
Formula:
C₁₉ H₁₅Cl₆Sb
Molecular Weight:
577.8
Deleted CAS:
16756-85-7
Synonyms:
Trityl antimony hexachloride;Methylium, triphenyl-, (OC-6-11)-hexachloroantimonate(1-);Triphenylcarbonium hexachloroantimonate;Tritylium, hexachloroantimonate (1-);Trityl hexachloroantimonate (1-);Tritylium hexachloroantimonate (V);Triphenylcarbenium hexachloroantimonate;Triphenylmethylium hexachloroantimonate;
EINECS:
216-446-6
Melting Point:
218 °C
Appearance:
Yellow powder
Hazard Symbols:
N,Xn
Risk Codes:
51/53-20/22
Safety:
61 Details
Transport Information:
UN3077

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Separation and characterization of e-caprolactone oligomers by gel permeation chromatography: Separation and characterization of e-caprolactone oligomers by gel permeation chromatography. Manolova, N.; Gitsov, I.; Velichkova, R.; Rashkov, I. (Cent. Lab. Polym., Sofia BG-1040, Bulg.). Polym. Bull. (Berlin), 13(3), 285-91 (English) 1985. CODEN: POBUDR. ISSN: 0170-0839. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) Section cross-reference(s): 36 The combined use of gel permeation chromatog. and the isocyanate method for detn. of OH end groups extends the possibilities for studying complex mixts. of oligomers of e-caprolactone (I) [502-44-3]. Oligomer mixts. obtained by polymn. with Ph3CSbCl6 [1586-91-0] or Ph3CK [1528-27-4] as the initiator are investigated. At initiation by both the cationic and the anionic initiator, a covalent bond is formed between the initiator and the polymer chain. During initiation by Ph3CK, intramol. transesterification proceeds which results in cyclic oligomers. During initiation by Ph3CSbCl6, linear oligomers are formed. Polymn. by Ph3CSbCl6 probably proceeds by alkyl-O bond scission.

Kinetics of the cationic polymerization of N-vinylcarbazole by trityl salts in nitrobenzene: Kinetics of the cationic polymerization of N-vinylcarbazole by trityl salts in nitrobenzene. Bilbao, Elena; Rodriguez, Matilde; Leon, Luis Manuel (Fac. Cienc., Univ. Pais Vasco, Bilbao, Spain). Polym. Bull. (Berlin), 12(4), 359-62 (English) 1984. CODEN: POBUDR. ISSN: 0170-0839. DOCUMENT TYPE: Journal CA Section: 35 (Chemistry of Synthetic High Polymers) The cationic polymn. of N-vinylcarbazole [1484-13-5] by Ph3CAsF6 [437-15-0], Ph3CSbCl6 [1586-91-0], and Ph3CSnCl5 [15414-98-9] in PhNO2 at 20° was studied. The propagation rate values were independent of the initiator concn., and an av. value of 8.9 ′ 104 M-1 s-1 was obtained and was interpreted according to the reaction conditions in terms of propagation by free ions.