引用本文:
Chen Ho TUNG, Li Zhu WU. ENHANCEMENT OF INTRAMOLECULAR EXCIMER FORMATION AND PHOTODIMERIZATION OF POLYETHERS BEARING NAPHTHALENE CHROMOPHORES VIA COMPLEXATION WITH CATIONS[J]. Chinese Chemical Letters,
1995, 6(2): 113-116.
Citation: Chen Ho TUNG, Li Zhu WU. ENHANCEMENT OF INTRAMOLECULAR EXCIMER FORMATION AND PHOTODIMERIZATION OF POLYETHERS BEARING NAPHTHALENE CHROMOPHORES VIA COMPLEXATION WITH CATIONS[J]. Chinese Chemical Letters, 1995, 6(2): 113-116.
Citation: Chen Ho TUNG, Li Zhu WU. ENHANCEMENT OF INTRAMOLECULAR EXCIMER FORMATION AND PHOTODIMERIZATION OF POLYETHERS BEARING NAPHTHALENE CHROMOPHORES VIA COMPLEXATION WITH CATIONS[J]. Chinese Chemical Letters, 1995, 6(2): 113-116.
ENHANCEMENT OF INTRAMOLECULAR EXCIMER FORMATION AND PHOTODIMERIZATION OF POLYETHERS BEARING NAPHTHALENE CHROMOPHORES VIA COMPLEXATION WITH CATIONS
摘要:
The fluorescence spectra and photodimerization of naphthalene end-labelled poly(ethylene glycol)oligomers(N-Pn-N)in methanol in the prescence of alkali cations have been investigated.The ion enhances or inhibits intramolecular excimer formation and photodimerization of N-Pn-N,depending on the size of the ion and the length of the polyether chain.This observation suggests that the polyether chain binds the ion,thus adopts a crown ether-like conformation.
English
ENHANCEMENT OF INTRAMOLECULAR EXCIMER FORMATION AND PHOTODIMERIZATION OF POLYETHERS BEARING NAPHTHALENE CHROMOPHORES VIA COMPLEXATION WITH CATIONS
Abstract:
The fluorescence spectra and photodimerization of naphthalene end-labelled poly(ethylene glycol)oligomers(N-Pn-N)in methanol in the prescence of alkali cations have been investigated.The ion enhances or inhibits intramolecular excimer formation and photodimerization of N-Pn-N,depending on the size of the ion and the length of the polyether chain.This observation suggests that the polyether chain binds the ion,thus adopts a crown ether-like conformation.
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