Chemistry is the experimental and theoretical study of materials on their properties at both the macroscopic and microscopic levels.In a patent， category: catalyst-ligand, Which mentioned a new discovery about 2082-84-0
Optical detection of triplet-state magnetic resonance (ODMR) is used to study the phosphorescent state of naphthalene (N) solubilized into trimethyl-n-alkylammonium bromide (C(n)TABR) micelles.The results are compared with those found for N solubilized by sodium n-alkyl sulfate (NaC(n)S) micelles.In NaC(n)S the 0,0 phosphorescence band of N shifts to the red and resolution increases with increasing n, indicating a progressively less polar environment.A similar trend is observed in C(n)TABR; for a given n, however, the N site is more polar in C(n)TABR.A trend in zero-field splitting (ZFS) parameter <*> observed in different micelles suggests that the polarizability increases in the sequence NaC10S < C10TABR = C12TABR = C14TABR = NaC12S < NaC14S < C16TABR.The triplet lifetime decreases linearly in C(n)TABR micelles with decreasing n and the normally unobserved <*>–<*>ODMR transition appears when n +<*> transition is independent of n in NaC(n)S, it increases with decreasing n in C(n)TABR because of an increase in heterogeneity of the N site.This effect could result from enhanced interactions with the cationic head groups of the surfactant and/or from increased water penetration into the cationic micelles.
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Reference：
Metal catalyst and ligand design,
Ligand Template Strategies for Catalyst Encapsulation – NCBI