New fluorescent sensor for antimony and transition metal cations based on rhodamine amide-arm homotrioxacalix[3]arene

• DOI: 10.1007/s10847-009-9665-z
• Publication Date: 2009-08-24T09:56:49Z
• Authors: Chong Wu; Wen-Juan Zhang; Xi Zeng; Lan Mu; Sai-Feng Xue; Zhu Tao; Takehiko Yamato
• Keywords: Rhodamine; Amide; Rhodamine B; Phenoxazine

A new fluorescent sensor 1 based on the rhodamine amide-armed homotrioxacalix[3]arene was synthesized, and its sensing behavior toward metal ions was investigated by UV–vis and fluorescence spectroscopies. Upon the addition of metal cations (Sb3+, Fe3+, Ni2+), a significant fluorescent enhancement in the range of 500–600 nm and colorimetric change was observed.