In situ FTIR-ATR analysis and titration of carboxylic acid-terminated SAMs
In situ FTIR-ATR analysis and titration of carboxylic acid-terminated SAMs
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DOI：
10.1021/ja037610u
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发表时间：
2004-01-21
影响因子：
15
通讯作者：
Sukenik, CN
中科院分区：
文献类型：
--
作者：
Gershevitz, O;Sukenik, CN
FTIR-ATR测量允许详细的结构分析和原位滴定的羧基封端的自组装单分子膜。可以看到单体和二聚/低聚酸基团，并直接监测它们的酸碱行为。仅与周围水分子氢键合的单体的pKa= 4.9，而聚集分子的pKa为9.3。
FTIR-ATR measurements permit detailed structural analysis and in situ titration of carboxylate-terminated self-assembled monolayers. Both monomeric and dimeric/oligomeric acid groups are seen, and their acid−base behavior is directly monitored. Monomers that are hydrogen bonded only to surrounding water molecules have a pKa= 4.9, while the pKafor the aggregated molecules is 9.3.