Excited-state proton transfer mechanism of benzothiazole-coupled salicylaldehyde imine

The excited-state intramolecular proton transfer (ESIPT) processes of 2-(2′-hydroxyphenyl)-benzothiazole (HBT) and salicylaldehyde imine (SAI) have been extensively studied. However, the ESIPT mechanism of HBT-coupled SAI was seldom reported. Herein, we synthesized a dye THER that integrating HBT an...
Ausführliche Beschreibung

Gespeichert in:

Autor*in:	Wang, Yanni [verfasserIn] Yang, Songqiu [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2020

Schlagwörter:	ESIPT Femtosecond transient absorption HBT-coupled SAI

Übergeordnetes Werk:	Enthalten in: Chemical physics letters - Amsterdam [u.a.] : Elsevier, 1967, 761
Übergeordnetes Werk:	volume:761

DOI / URN:	10.1016/j.cplett.2020.138024

Katalog-ID:	ELV005002621

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520			\|a The excited-state intramolecular proton transfer (ESIPT) processes of 2-(2′-hydroxyphenyl)-benzothiazole (HBT) and salicylaldehyde imine (SAI) have been extensively studied. However, the ESIPT mechanism of HBT-coupled SAI was seldom reported. Herein, we synthesized a dye THER that integrating HBT and SAI, and investigated its excited-state dynamics in combination with femtosecond transient absorption spectrum and DFT/TDDFT calculations. Results indicate two proton transfer pathways could proceed in THER. The ESIPT rate in the HBT part is slower about 10-fold than in SAI part because of a relative higher energy barrier. Besides, torsion tends to occur after the ESIPT in the SAI part.
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700	1		\|a Yang, Songqiu \|e verfasserin \|0 (orcid)0000-0003-3700-6951 \|4 aut
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Indexfelder

author_variant	y w yw s y sy
matchkey_str	wangyanniyangsongqiu:2020----:xiesaertnrnfrehnsobnohaoeope
hierarchy_sort_str	2020
bklnumber	35.10
publishDate	2020
allfields	10.1016/j.cplett.2020.138024 doi (DE-627)ELV005002621 (ELSEVIER)S0009-2614(20)30939-8 DE-627 ger DE-627 rda eng 540 VZ 35.10 bkl Wang, Yanni verfasserin aut Excited-state proton transfer mechanism of benzothiazole-coupled salicylaldehyde imine 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The excited-state intramolecular proton transfer (ESIPT) processes of 2-(2′-hydroxyphenyl)-benzothiazole (HBT) and salicylaldehyde imine (SAI) have been extensively studied. However, the ESIPT mechanism of HBT-coupled SAI was seldom reported. Herein, we synthesized a dye THER that integrating HBT and SAI, and investigated its excited-state dynamics in combination with femtosecond transient absorption spectrum and DFT/TDDFT calculations. Results indicate two proton transfer pathways could proceed in THER. The ESIPT rate in the HBT part is slower about 10-fold than in SAI part because of a relative higher energy barrier. Besides, torsion tends to occur after the ESIPT in the SAI part. ESIPT Femtosecond transient absorption HBT-coupled SAI Yang, Songqiu verfasserin (orcid)0000-0003-3700-6951 aut Enthalten in Chemical physics letters Amsterdam [u.a.] : Elsevier, 1967 761 Online-Ressource (DE-627)265783704 (DE-600)1466293-0 (DE-576)074890905 nnns volume:761 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.10 Physikalische Chemie: Allgemeines VZ AR 761
spelling	10.1016/j.cplett.2020.138024 doi (DE-627)ELV005002621 (ELSEVIER)S0009-2614(20)30939-8 DE-627 ger DE-627 rda eng 540 VZ 35.10 bkl Wang, Yanni verfasserin aut Excited-state proton transfer mechanism of benzothiazole-coupled salicylaldehyde imine 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The excited-state intramolecular proton transfer (ESIPT) processes of 2-(2′-hydroxyphenyl)-benzothiazole (HBT) and salicylaldehyde imine (SAI) have been extensively studied. However, the ESIPT mechanism of HBT-coupled SAI was seldom reported. Herein, we synthesized a dye THER that integrating HBT and SAI, and investigated its excited-state dynamics in combination with femtosecond transient absorption spectrum and DFT/TDDFT calculations. Results indicate two proton transfer pathways could proceed in THER. The ESIPT rate in the HBT part is slower about 10-fold than in SAI part because of a relative higher energy barrier. Besides, torsion tends to occur after the ESIPT in the SAI part. ESIPT Femtosecond transient absorption HBT-coupled SAI Yang, Songqiu verfasserin (orcid)0000-0003-3700-6951 aut Enthalten in Chemical physics letters Amsterdam [u.a.] : Elsevier, 1967 761 Online-Ressource (DE-627)265783704 (DE-600)1466293-0 (DE-576)074890905 nnns volume:761 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.10 Physikalische Chemie: Allgemeines VZ AR 761
allfields_unstemmed	10.1016/j.cplett.2020.138024 doi (DE-627)ELV005002621 (ELSEVIER)S0009-2614(20)30939-8 DE-627 ger DE-627 rda eng 540 VZ 35.10 bkl Wang, Yanni verfasserin aut Excited-state proton transfer mechanism of benzothiazole-coupled salicylaldehyde imine 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The excited-state intramolecular proton transfer (ESIPT) processes of 2-(2′-hydroxyphenyl)-benzothiazole (HBT) and salicylaldehyde imine (SAI) have been extensively studied. However, the ESIPT mechanism of HBT-coupled SAI was seldom reported. Herein, we synthesized a dye THER that integrating HBT and SAI, and investigated its excited-state dynamics in combination with femtosecond transient absorption spectrum and DFT/TDDFT calculations. Results indicate two proton transfer pathways could proceed in THER. The ESIPT rate in the HBT part is slower about 10-fold than in SAI part because of a relative higher energy barrier. Besides, torsion tends to occur after the ESIPT in the SAI part. ESIPT Femtosecond transient absorption HBT-coupled SAI Yang, Songqiu verfasserin (orcid)0000-0003-3700-6951 aut Enthalten in Chemical physics letters Amsterdam [u.a.] : Elsevier, 1967 761 Online-Ressource (DE-627)265783704 (DE-600)1466293-0 (DE-576)074890905 nnns volume:761 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.10 Physikalische Chemie: Allgemeines VZ AR 761
allfieldsGer	10.1016/j.cplett.2020.138024 doi (DE-627)ELV005002621 (ELSEVIER)S0009-2614(20)30939-8 DE-627 ger DE-627 rda eng 540 VZ 35.10 bkl Wang, Yanni verfasserin aut Excited-state proton transfer mechanism of benzothiazole-coupled salicylaldehyde imine 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The excited-state intramolecular proton transfer (ESIPT) processes of 2-(2′-hydroxyphenyl)-benzothiazole (HBT) and salicylaldehyde imine (SAI) have been extensively studied. However, the ESIPT mechanism of HBT-coupled SAI was seldom reported. Herein, we synthesized a dye THER that integrating HBT and SAI, and investigated its excited-state dynamics in combination with femtosecond transient absorption spectrum and DFT/TDDFT calculations. Results indicate two proton transfer pathways could proceed in THER. The ESIPT rate in the HBT part is slower about 10-fold than in SAI part because of a relative higher energy barrier. Besides, torsion tends to occur after the ESIPT in the SAI part. ESIPT Femtosecond transient absorption HBT-coupled SAI Yang, Songqiu verfasserin (orcid)0000-0003-3700-6951 aut Enthalten in Chemical physics letters Amsterdam [u.a.] : Elsevier, 1967 761 Online-Ressource (DE-627)265783704 (DE-600)1466293-0 (DE-576)074890905 nnns volume:761 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.10 Physikalische Chemie: Allgemeines VZ AR 761
allfieldsSound	10.1016/j.cplett.2020.138024 doi (DE-627)ELV005002621 (ELSEVIER)S0009-2614(20)30939-8 DE-627 ger DE-627 rda eng 540 VZ 35.10 bkl Wang, Yanni verfasserin aut Excited-state proton transfer mechanism of benzothiazole-coupled salicylaldehyde imine 2020 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The excited-state intramolecular proton transfer (ESIPT) processes of 2-(2′-hydroxyphenyl)-benzothiazole (HBT) and salicylaldehyde imine (SAI) have been extensively studied. However, the ESIPT mechanism of HBT-coupled SAI was seldom reported. Herein, we synthesized a dye THER that integrating HBT and SAI, and investigated its excited-state dynamics in combination with femtosecond transient absorption spectrum and DFT/TDDFT calculations. Results indicate two proton transfer pathways could proceed in THER. The ESIPT rate in the HBT part is slower about 10-fold than in SAI part because of a relative higher energy barrier. Besides, torsion tends to occur after the ESIPT in the SAI part. ESIPT Femtosecond transient absorption HBT-coupled SAI Yang, Songqiu verfasserin (orcid)0000-0003-3700-6951 aut Enthalten in Chemical physics letters Amsterdam [u.a.] : Elsevier, 1967 761 Online-Ressource (DE-627)265783704 (DE-600)1466293-0 (DE-576)074890905 nnns volume:761 GBV_USEFLAG_U SYSFLAG_U GBV_ELV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_101 GBV_ILN_105 GBV_ILN_110 GBV_ILN_150 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 35.10 Physikalische Chemie: Allgemeines VZ AR 761
language	English
source	Enthalten in Chemical physics letters 761 volume:761
sourceStr	Enthalten in Chemical physics letters 761 volume:761
format_phy_str_mv	Article
bklname	Physikalische Chemie: Allgemeines
institution	findex.gbv.de
topic_facet	ESIPT Femtosecond transient absorption HBT-coupled SAI
dewey-raw	540
isfreeaccess_bool	false
container_title	Chemical physics letters
authorswithroles_txt_mv	Wang, Yanni @@aut@@ Yang, Songqiu @@aut@@
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author	Wang, Yanni
spellingShingle	Wang, Yanni ddc 540 bkl 35.10 misc ESIPT misc Femtosecond transient absorption misc HBT-coupled SAI Excited-state proton transfer mechanism of benzothiazole-coupled salicylaldehyde imine
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topic_title	540 VZ 35.10 bkl Excited-state proton transfer mechanism of benzothiazole-coupled salicylaldehyde imine ESIPT Femtosecond transient absorption HBT-coupled SAI
topic	ddc 540 bkl 35.10 misc ESIPT misc Femtosecond transient absorption misc HBT-coupled SAI
topic_unstemmed	ddc 540 bkl 35.10 misc ESIPT misc Femtosecond transient absorption misc HBT-coupled SAI
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title	Excited-state proton transfer mechanism of benzothiazole-coupled salicylaldehyde imine
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title_full	Excited-state proton transfer mechanism of benzothiazole-coupled salicylaldehyde imine
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title_sort	excited-state proton transfer mechanism of benzothiazole-coupled salicylaldehyde imine
title_auth	Excited-state proton transfer mechanism of benzothiazole-coupled salicylaldehyde imine
abstract	The excited-state intramolecular proton transfer (ESIPT) processes of 2-(2′-hydroxyphenyl)-benzothiazole (HBT) and salicylaldehyde imine (SAI) have been extensively studied. However, the ESIPT mechanism of HBT-coupled SAI was seldom reported. Herein, we synthesized a dye THER that integrating HBT and SAI, and investigated its excited-state dynamics in combination with femtosecond transient absorption spectrum and DFT/TDDFT calculations. Results indicate two proton transfer pathways could proceed in THER. The ESIPT rate in the HBT part is slower about 10-fold than in SAI part because of a relative higher energy barrier. Besides, torsion tends to occur after the ESIPT in the SAI part.
abstractGer	The excited-state intramolecular proton transfer (ESIPT) processes of 2-(2′-hydroxyphenyl)-benzothiazole (HBT) and salicylaldehyde imine (SAI) have been extensively studied. However, the ESIPT mechanism of HBT-coupled SAI was seldom reported. Herein, we synthesized a dye THER that integrating HBT and SAI, and investigated its excited-state dynamics in combination with femtosecond transient absorption spectrum and DFT/TDDFT calculations. Results indicate two proton transfer pathways could proceed in THER. The ESIPT rate in the HBT part is slower about 10-fold than in SAI part because of a relative higher energy barrier. Besides, torsion tends to occur after the ESIPT in the SAI part.
abstract_unstemmed	The excited-state intramolecular proton transfer (ESIPT) processes of 2-(2′-hydroxyphenyl)-benzothiazole (HBT) and salicylaldehyde imine (SAI) have been extensively studied. However, the ESIPT mechanism of HBT-coupled SAI was seldom reported. Herein, we synthesized a dye THER that integrating HBT and SAI, and investigated its excited-state dynamics in combination with femtosecond transient absorption spectrum and DFT/TDDFT calculations. Results indicate two proton transfer pathways could proceed in THER. The ESIPT rate in the HBT part is slower about 10-fold than in SAI part because of a relative higher energy barrier. Besides, torsion tends to occur after the ESIPT in the SAI part.
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title_short	Excited-state proton transfer mechanism of benzothiazole-coupled salicylaldehyde imine
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doi_str	10.1016/j.cplett.2020.138024
up_date	2024-07-07T00:51:27.417Z
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However, the ESIPT mechanism of HBT-coupled SAI was seldom reported. Herein, we synthesized a dye THER that integrating HBT and SAI, and investigated its excited-state dynamics in combination with femtosecond transient absorption spectrum and DFT/TDDFT calculations. Results indicate two proton transfer pathways could proceed in THER. The ESIPT rate in the HBT part is slower about 10-fold than in SAI part because of a relative higher energy barrier. 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Excited-state proton transfer mechanism of benzothiazole-coupled salicylaldehyde imine

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