C–HO hydrogen bonding in a 4-fluorobenzoate multilayer induced by silver nanoparticles

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• 作者：Donald A. Perry^a ; ^{donp@uca.edu"" rel=""nofollow} ; Elizabeth M. Schiefer^a ; ^{eschiefer3@gatech.edu"" rel=""nofollow} ; James S. Cordova^a ; ^{jsco40@yahoo.com"" rel=""nofollow} ; Ashley M. Bonde^a ; ^{ashley_bonde@hotmail.com"" rel=""nofollow} ; Taylor M. Razer^a ; ^{trazer1@cub.uca.edu"" rel=""nofollow} ; Katherine M. Primm^a ; ^{kprimm3@cub.uca.edu"" rel=""nofollow} ; Tsung Yen Chen^a ; ^{tchen1@cub.uca.edu"" rel=""nofollow} ; Alexandru S. Biris^b ; ^{asbiris@ualr.edu"" rel=""nofollow}
• 刊名：Chemical Physics Letters
• 出版年：2011
• 出版时间：5 August 2011
• 年：2011
• 卷：511
• 期：4-6
• 页码：348-350
• 全文大小：526 K

文摘

SERS, SEIRA, and DFT calculations showed silver nanoparticles can stimulate C–HO hydrogen bonding in 4-fluorobenzoate ion/n-heptane multilayers. SERS/DFT demonstrated that 4-fluorobenzoic acid (4FBA) adsorbed as a 4-fluorobenzoate (4FBT) monolayer on nanosilver. Ionization of 4FBA to 4FBT occurred in the multilayer when 4FBA was deposited in n-heptane onto nanosilver. Frequency shifts in SEIRA bands of 4FBT COO stretch and n-heptane CH bend modes illustrated a change in the degree of C–HO hydrogen bonding as more 4FBT/n-heptane was adsorbed to the multilayer. This work will influence many research areas such as sensors formed from thin organic layers on metal nanoparticles.