%0 Journal Article
%T Synthesis of a Rhodamine-Appended  Cyclophane as a Fluorescence Host in Water
%A Osamu Hayashida
%A Yu Kaku
%J Advances in Chemical Engineering and Science
%P 401-408
%@ 2160-0406
%D 2014
%I Scientific Research Publishing
%R 10.4236/aces.2014.44044
%X A
cationic water-soluble cyclophane (1a) having a rhodamine moiety as a
red-fluorescence fluorophore was prepared by reaction of a monoamine derivative
of <span style=\"font-size:12px;line-height:2;font-family:Verdana;\" \"=\"\">tetraaza[6.1.6.1]paracyclophane </span><span style=\"font-size:10.0pt;line-height:115%;font-family:;\" \"=\"\"><span style=\"font-size:12px;font-family:Verdana;line-height:2;\">having three </span><i><span style=\"font-size:12px;font-family:Verdana;line-height:2;\">N</span></i><span style=\"font-size:12px;font-family:Verdana;line-height:2;\">-t-butoxycarbonyl-</span></span><i><span style=\"font-size:12px;line-height:2;font-family:Verdana;\" \"=\"\">¦Â</span></i><span style=\"font-size:10.0pt;line-height:115%;font-family:;\" \"=\"\"><span style=\"font-size:12px;font-family:Verdana;line-height:2;\">-alanine residues with
rhodamine B isothiocyanate, followed by removal of the protecting groups. The
guest-binding behavior of 1a toward anionic guests such as dabsyl derivative
and 4-(1-pyrene)butanoate was investigated by fluorescence spectroscopy. The
results suggested the formation of host-guest complexes with a stoichiometric
ratio of 1:1 and the binding constants (</span><i><span style=\"font-size:12px;font-family:Verdana;line-height:2;\">K</span></i><span style=\"font-size:12px;font-family:Verdana;line-height:2;\">)
of the host-guest complexes were evaluated.</span></span>
%K Host-Guest Chemistry
%K Water-Soluble Cyclophane
%K Fluorescent Sensing
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=49897