{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T18:20:52Z","timestamp":1760898052055,"version":"build-2065373602"},"reference-count":30,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2011,2,7]],"date-time":"2011-02-07T00:00:00Z","timestamp":1297036800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["chemistry-europe.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["ChemPhysChem"],"published-print":{"date-parts":[[2011,3,14]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>2\u2010Acetylcyclopentanone (2\u2010ACP), which is a \u03b2\u2010dicarbonyl compound, undergoes <jats:italic>keto<\/jats:italic>\u2013<jats:italic>enol<\/jats:italic> isomerization, and its <jats:italic>enol<\/jats:italic> tautomers are stabilized by a cyclic intramolecular hydrogen bond. 2\u2010ACP (<jats:italic>keto<\/jats:italic> form) has symmetric and asymmetric vibrational modes of the two carbonyl groups at 1748 and 1715 cm<jats:sup>\u22121<\/jats:sup>, respectively, which are well separated from the carbonyl modes of its <jats:italic>enol<\/jats:italic> tautomers in the FTIR spectrum. We have investigated 2\u2010ACP dissolved in carbon tetrachloride by 2D IR spectroscopy and IR pump\u2013probe spectroscopy. Vibrational population transfer dynamics between the two carbonyl modes were observed by 2D IR spectroscopy. To extract the population exchange dynamics (i.e., the down\u2010 and uphill population transfer rate constants), we used the normalized volumes of the cross\u2010peaks with respect to the diagonal peaks at the same emission frequency and the survival and conditional probability functions. As expected, the downhill population transfer time constant (3.2 ps) was measured to be smaller than the uphill population transfer time constant (3.8 ps). In addition, the vibrational population relaxation dynamics of the two carbonyl modes were observed to be the same within the experimental error and were found to be much slower than vibrational population transfer between two carbonyl modes.<\/jats:p>","DOI":"10.1002\/cphc.201000794","type":"journal-article","created":{"date-parts":[[2011,2,7]],"date-time":"2011-02-07T12:12:34Z","timestamp":1297080754000},"page":"799-805","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Ultrafast Vibrational Population Transfer Dynamics in 2\u2010Acetylcyclopentanone Studied by 2D IR Spectroscopy"],"prefix":"10.1002","volume":"12","author":[{"given":"Sungnam","family":"Park","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Minbiao","family":"Ji","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2011,2,7]]},"reference":[{"key":"e_1_2_6_1_2","doi-asserted-by":"publisher","DOI":"10.1021\/cr078377b"},{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1002\/cphc.200700148"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1146\/annurev-physchem-073108-112712"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1039\/b618158a"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1039\/b819181f"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.0504865102"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1021\/jp9016739"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1126\/science.1116213"},{"key":"e_1_2_6_9_2","doi-asserted-by":"publisher","DOI":"10.1021\/jp100833t"},{"key":"e_1_2_6_10_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.0610027104"},{"key":"e_1_2_6_11_2","doi-asserted-by":"publisher","DOI":"10.1063\/1.1818107"},{"key":"e_1_2_6_12_2","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.0707824104"},{"key":"e_1_2_6_13_2","doi-asserted-by":"publisher","DOI":"10.1063\/1.2969900"},{"key":"e_1_2_6_14_2","doi-asserted-by":"publisher","DOI":"10.1201\/9781420084306"},{"key":"e_1_2_6_15_2","doi-asserted-by":"publisher","DOI":"10.1021\/ar068010d"},{"key":"e_1_2_6_16_2","doi-asserted-by":"publisher","DOI":"10.1021\/jp011215d"},{"key":"e_1_2_6_17_2","doi-asserted-by":"publisher","DOI":"10.1103\/PhysRevLett.89.237401"},{"key":"e_1_2_6_18_2","doi-asserted-by":"publisher","DOI":"10.1039\/b202981m"},{"key":"e_1_2_6_19_2","doi-asserted-by":"publisher","DOI":"10.1021\/jo026629x"},{"key":"e_1_2_6_20_2","doi-asserted-by":"publisher","DOI":"10.1039\/b415220d"},{"key":"e_1_2_6_21_2","unstructured":"D. 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