The Experts below are selected from a list of 153 Experts worldwide ranked by ideXlab platform
Junrong Zheng - One of the best experts on this subject based on the ideXlab platform.
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mode specific intermolecular vibrational energy transfer ii deuterated water and Potassium Selenocyanate mixture
2010Co-Authors: Hongtao Bian, Xiewen Wen, Junrong ZhengAbstract:Vibrational energy transfer from the first excited state (2635 cm−1) of the O–D stretch of deuterated water (D2O) to the 0-1 transition (2075 cm−1) of the CN stretch of Potassium Selenocyanate (KSeCN) in their 2.5:1 liquid mixture was observed with a multiple-mode two dimensional infrared spectroscopic technique. Despite the big energy mismatch (560 cm−1) between the two modes, the transfer is still very efficient with a time constant of 20 ps. The efficient energy transfer is probably because of the large excitation coupling between the two modes. The coupling is experimentally determined to be 176 cm−1. An approximate analytical equation derived from the Landau–Teller formula is applied to calculate the energy transfer rate with all parameters experimentally determined. The calculation results are qualitatively consistent with the experimental data.
Hongtao Bian - One of the best experts on this subject based on the ideXlab platform.
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mode specific intermolecular vibrational energy transfer ii deuterated water and Potassium Selenocyanate mixture
2010Co-Authors: Hongtao Bian, Xiewen Wen, Junrong ZhengAbstract:Vibrational energy transfer from the first excited state (2635 cm−1) of the O–D stretch of deuterated water (D2O) to the 0-1 transition (2075 cm−1) of the CN stretch of Potassium Selenocyanate (KSeCN) in their 2.5:1 liquid mixture was observed with a multiple-mode two dimensional infrared spectroscopic technique. Despite the big energy mismatch (560 cm−1) between the two modes, the transfer is still very efficient with a time constant of 20 ps. The efficient energy transfer is probably because of the large excitation coupling between the two modes. The coupling is experimentally determined to be 176 cm−1. An approximate analytical equation derived from the Landau–Teller formula is applied to calculate the energy transfer rate with all parameters experimentally determined. The calculation results are qualitatively consistent with the experimental data.
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Mode-specific intermolecular vibrational energy transfer. II. Deuterated water and Potassium Selenocyanate mixture
2010Co-Authors: Hongtao Bian, Xiewen Wen, Junrong ZhengaAbstract:Vibrational energy transfer from the first excited state 2635 cm−1 of the O–D stretch of deuterated water D2O to the 0-1 transition 2075 cm−1 of the CN stretch of Potassium Selenocyanate KSeCN in their 2.5:1 liquid mixture was observed with a multiple-mode two dimensional infrared spectroscopic technique. Despite the big energy mismatch 560 cm−1 between the two modes, the transfer is still very efficient with a time constant of 20 ps. The efficient energy transfer is probably because of the large excitation coupling between the two modes. The coupling is experimentally determined to be 176 cm−1. An approximate analytical equation derived from the Landau–Teller formula is applied to calculate the energy transfer rate with all parameters experimentally determined. The calculation results are qualitatively consistent with the experimental data. © 2010 American Institute of Physics. doi:10.1063/1.3458825 I
Alireza Hassanabadi - One of the best experts on this subject based on the ideXlab platform.
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a synthesis of novel selenophenes from activated acetylenes ethyl 2 cyano 3 arylacrylate and Potassium Selenocyanate
2021Co-Authors: Zahra Siroos, Alireza Hassanabadi, Mohammad H. MossleminAbstract:In the last two decades, the selenophene unit has appeared as an important structural component in biologically active compounds known for anticancer, antimicrobial and antioxidant effects.1–6 The ...
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three component reaction between kojic acid and acyl chlorides with Potassium Selenocyanate synthesis of 2 aryl alkyl 6 hydroxymethyl 4 selenoxo 4h pyrano 2 3 e 1 3 oxazin 8 one
2020Co-Authors: Zeynab Keykha, Alireza Hassanabadi, Manoochehr Fadaeian, Mohammad Ali GhasemzadehAbstract:We report an efficient method for the synthesis of 2-aryl(alkyl)-6-hydroxymethyl-4-selenoxo-4H-pyrano[2,3-e][1,3]oxazin-8-ones from the condensation of Potassium Selenocyanate and acyl chlorides wi...
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three component reaction between dimethyl acetylenedicarboxylate and 2 3 5 dimethylpyrazole 1 carbonyl 3 arylacrylonitrile in the presence of Potassium Selenocyanate a synthesis of highly functionalized selenophenes
2020Co-Authors: Zahra Siroos, Alireza Hassanabadi, Mohammad H. MossleminAbstract:Reaction between 2-(3,5-dimethylpyrazole-1-carbonyl)-3-arylacrylonitrile and dimethyl acetylenedicarboxylate in the presence of Potassium Selenocyanate at room temperature provided a simple and eff...
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three component reaction between 2 aminobenzamide aroyl chlorides and Potassium Selenocyanate synthesis of 2 3 aroyl selenoureido benzamide
2020Co-Authors: Sonia Singh, Alireza HassanabadiAbstract:A simple, one-pot and green synthesis of six 2-[3-(aroyl)-selenoureido])-benzamide and 2-arylquinazolin-4(3H)-ones has been achieved in moderate to good yields via a three-component condensation of...
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synthesis of functionalized selenazole derivatives via a three component condensation of ethyl 2 chloro 3 oxo butyrate Potassium Selenocyanate and hydrazine or hydrazide derivatives
2020Co-Authors: Marziyeh Pourmosavi, Mohammad H. Mosslemin, Alireza HassanabadiAbstract:A simple, one-pot synthesis of five highly functionalized selenazole derivatives has been achieved in moderate-to-good yields via a three-component condensation of ethyl-2-chloro-3-oxo-butyrate, po...
Xiewen Wen - One of the best experts on this subject based on the ideXlab platform.
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mode specific intermolecular vibrational energy transfer ii deuterated water and Potassium Selenocyanate mixture
2010Co-Authors: Hongtao Bian, Xiewen Wen, Junrong ZhengAbstract:Vibrational energy transfer from the first excited state (2635 cm−1) of the O–D stretch of deuterated water (D2O) to the 0-1 transition (2075 cm−1) of the CN stretch of Potassium Selenocyanate (KSeCN) in their 2.5:1 liquid mixture was observed with a multiple-mode two dimensional infrared spectroscopic technique. Despite the big energy mismatch (560 cm−1) between the two modes, the transfer is still very efficient with a time constant of 20 ps. The efficient energy transfer is probably because of the large excitation coupling between the two modes. The coupling is experimentally determined to be 176 cm−1. An approximate analytical equation derived from the Landau–Teller formula is applied to calculate the energy transfer rate with all parameters experimentally determined. The calculation results are qualitatively consistent with the experimental data.
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Mode-specific intermolecular vibrational energy transfer. II. Deuterated water and Potassium Selenocyanate mixture
2010Co-Authors: Hongtao Bian, Xiewen Wen, Junrong ZhengaAbstract:Vibrational energy transfer from the first excited state 2635 cm−1 of the O–D stretch of deuterated water D2O to the 0-1 transition 2075 cm−1 of the CN stretch of Potassium Selenocyanate KSeCN in their 2.5:1 liquid mixture was observed with a multiple-mode two dimensional infrared spectroscopic technique. Despite the big energy mismatch 560 cm−1 between the two modes, the transfer is still very efficient with a time constant of 20 ps. The efficient energy transfer is probably because of the large excitation coupling between the two modes. The coupling is experimentally determined to be 176 cm−1. An approximate analytical equation derived from the Landau–Teller formula is applied to calculate the energy transfer rate with all parameters experimentally determined. The calculation results are qualitatively consistent with the experimental data. © 2010 American Institute of Physics. doi:10.1063/1.3458825 I
Jiamin Qiao - One of the best experts on this subject based on the ideXlab platform.
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visible light promoted selenocyanation of cyclobutanone oxime esters using Potassium Selenocyanate
2021Co-Authors: Xia Zhao, Yu Gao, Tengteng Sun, Jiamin QiaoAbstract:We report the visible-light-promoted selenocyanation of cyclobutanone oxime esters using Potassium Selenocyanate in the presence of a fac-Ir(ppy)3 catalyst for the first time. Because of the mild conditions employed and use of readily accessible Potassium Selenocyanate, this method is an effective and green strategy for the synthesis of cyano and selenocyano bifunctional substituted alkanes.
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Visible-Light-Promoted Selenocyanation of Cyclobutanone Oxime Esters Using Potassium Selenocyanate
2021Co-Authors: Xia Zhao, Yu Gao, Tengteng Sun, Jiamin QiaoAbstract:We report the visible-light-promoted selenocyanation of cyclobutanone oxime esters using Potassium Selenocyanate in the presence of a fac-Ir(ppy)3 catalyst for the first time. Because of the mild conditions employed and use of readily accessible Potassium Selenocyanate, this method is an effective and green strategy for the synthesis of cyano and selenocyano bifunctional substituted alkanes