Signal communication between molecular switches

Organic Letters

Volumn 3, Issue 22, 2001, Pages 3475-3478

  Raymo, Françisco M ^a   Giordani, Silvia ^a  

^a Department of Biology   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AZO COMPOUND; COLORING AGENT; PYRIDINE DERIVATIVE;

ARTICLE; BIOLOGICAL MODEL; CHEMICAL MODEL; CHEMISTRY; ELECTRONICS; PHOTOCHEMISTRY; SIGNAL TRANSDUCTION; SYNAPTIC TRANSMISSION; TRANSDUCER;

AZO COMPOUNDS; COLORING AGENTS; MINIATURIZATION; MODELS, CHEMICAL; MODELS, NEUROLOGICAL; PHOTOCHEMISTRY; PYRIDINES; SIGNAL TRANSDUCTION; SYNAPTIC TRANSMISSION; TRANSDUCERS;

EID: 0035513470     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol016502e     Document Type: Article

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39. The solution was irradiated for 5 min at 254 nm using a Mineralight UVGL-25 lamp. During irradiation, the ratio between SP and ME changed from the initial 100:0 to a stationary 60:40. These values were derived from the absorbance measured at 563 nm, using the molar extinction coefficient of the merocyanine form of the parent compound 1′,3′-dihydro-1′,3′,3′-trimethyl-6-nitrospiro[2H- 1-benzopyran-2,2′(2H)-indole]. Sakuragi, M.; Aoki, K.; Tamaki, T.; Ichimura, K. Bull. Chem. Soc. Jpn. 1990, 63, 74-79.
40. The solution was irradiated for 15 min at 524 nm using a Cole-Parmer fiber optic illuminator 9745-00.
41. The ratio between the two states was derived from the absorbance measured at 556 nm, using the molar extinction coefficient of AZH determined from the absorption spectrum b in Figure 1.
42. 2H (10 equiv), remains unchanged after ultraviolet light or visible light irradiation. These observations indicate that both irradiation conditions do not affect the two states AZ and AZH.
43. For a related example of the interplay between optical inputs and optical outputs, see: Miller, S. E.; Lukas, A. S.; Marsh, E.; Bushard, P.; Wasielewski, M. R. J. Am. Chem. Soc. 2000, 122, 7802-7810.
44. The absorbance at 556 nm was determined immediately after, rather than during, the application of the light inputs I1 and/or I2. Two independent light sources and an irradiation time of 15 min were used when the simultaneous application of both inputs was required.