Abstract
Intense room temperature phosphorescence (RTP) from host-guest inclusion complex of beta-cyclodextrin (β-CD) with 1-bromonaphthalene (1-BrN), stabilized by naphthalene (N) and 1-butanol (B), has been investigated. The spectral characteristics of luminescence emission and optimal conditions involved are reported. It has been confirmed that N and B are incorporated into the nonpolar cavity of β-CD as the second and third guests. The extra space inside the cavity is more filled by N and B, and δ-CD more effectively shields 1-BrN from quencher in aqueous solution. B completely hinders the formation of N excimer. Greater rigidity of the complex was achieved. Consequently, much more intense fluorescence and phosphorescence appear in comparison with the ternary β-CD:1-BrN:B complex. The limit of detection is 7.38 × 10 −8mol 1 −1 for 1-BrN and 1.36 × 10 −6mol 1 −1 for N.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call