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Pregled bibliografske jedinice broj: 307833

Hyperstrong Neutral Organic Bases: Phosphazeno azacalix[3](2, 6)pyridines


Despotović, Ines; Kovačević, Borislav; Maksić, Zvonimir
Hyperstrong Neutral Organic Bases: Phosphazeno azacalix[3](2, 6)pyridines // Organic Letters, 9 (2007), 23; 4709-4712 (međunarodna recenzija, članak, znanstveni)


CROSBI ID: 307833 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Hyperstrong Neutral Organic Bases: Phosphazeno azacalix[3](2, 6)pyridines

Autori
Despotović, Ines ; Kovačević, Borislav ; Maksić, Zvonimir

Izvornik
Organic Letters (1523-7060) 9 (2007), 23; 4709-4712

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
superbases

Sažetak
The gas phase basicities and pKa values in acetonitrile of tris(phosphazeno) substituted azacalix[3](2, 6)pyridine and some related compounds are examined by DFT computational method. It is shown that the hexakis(phosphazeno) derivative of azacalix[3](2, 6)pyridine is a hyperstrong neutral base as evidenced by the absolute proton affinity (APA) of 314.6 kcal mol-1 and pKa (MeCN) of 37.3 units. It is a consequence of the very strong bifurcated hydrogen bond (32 kcal mol-1) and substantial cationic resonance effect.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekti:
098-0982933-2932 - Broenstedove i Lewisove kiseline i baze u kemiji i biokemiji (Vianello, Robert, MZOS ) ( POIROT)

Ustanove:
Institut "Ruđer Bošković", Zagreb


Citiraj ovu publikaciju:

Despotović, Ines; Kovačević, Borislav; Maksić, Zvonimir
Hyperstrong Neutral Organic Bases: Phosphazeno azacalix[3](2, 6)pyridines // Organic Letters, 9 (2007), 23; 4709-4712 (međunarodna recenzija, članak, znanstveni)
Despotović, I., Kovačević, B. & Maksić, Z. (2007) Hyperstrong Neutral Organic Bases: Phosphazeno azacalix[3](2, 6)pyridines. Organic Letters, 9 (23), 4709-4712.
@article{article, author = {Despotovi\'{c}, Ines and Kova\v{c}evi\'{c}, Borislav and Maksi\'{c}, Zvonimir}, year = {2007}, pages = {4709-4712}, keywords = {superbases}, journal = {Organic Letters}, volume = {9}, number = {23}, issn = {1523-7060}, title = {Hyperstrong Neutral Organic Bases: Phosphazeno azacalix[3](2, 6)pyridines}, keyword = {superbases} }
@article{article, author = {Despotovi\'{c}, Ines and Kova\v{c}evi\'{c}, Borislav and Maksi\'{c}, Zvonimir}, year = {2007}, pages = {4709-4712}, keywords = {superbases}, journal = {Organic Letters}, volume = {9}, number = {23}, issn = {1523-7060}, title = {Hyperstrong Neutral Organic Bases: Phosphazeno azacalix[3](2, 6)pyridines}, keyword = {superbases} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus
  • MEDLINE





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