title: 9-(cycloheptatrienylidene)-fluorene derivative: remarkable ratiometric pH sensor and computing switch with NOR logic gate.
abstract: 2,7-Bis(4-dimethylaminophenyl)-9-(cycloheptatrienylidene)fluorene (1) was synthesized and characterized. 1 could be used as a fluorescent sensor either for pH or for pyridinium halide. Integrated with the ratiometric method and an NOR logic gate, a tunable two-input/multi-output system was presented on the basis of this single molecule. [structure: see text]
authors.affiliation: Chemistry Department, Zhejiang University, 38 Zheda Road, Hangzhou, Zhejiang, P. R. China.
authors.forename: Zixing
authors.initials: Z
authors.lastname: Wang
authors.forename: Guorong
authors.initials: G
authors.lastname: Zheng
authors.forename: Ping
authors.initials: P
authors.lastname: Lu