. . . "In chemistry, a reactive intermediate or an intermediate is a short-lived, high-energy, highly reactive molecule. When generated in a chemical reaction, it will quickly convert into a more stable molecule. Only in exceptional cases can these compounds be isolated and stored, e.g. low temperatures, matrix isolation. When their existence is indicated, reactive intermediates can help explain how a chemical reaction takes place."@en . . "Reaktivn\u00ED meziprodukty jsou kr\u00E1tkodob\u00E9 a vysokoenergetick\u00E9 molekuly, vykazuj\u00EDc\u00ED vysokou reaktivitu, vznikaj\u00EDc\u00ED v pr\u016Fb\u011Bhu chemick\u00FDch reakc\u00ED, kde se rychle p\u0159em\u011B\u0148uj\u00ED na stabiln\u011Bj\u0161\u00ED \u010D\u00E1stice. Jen velmi v\u00FDjime\u010Dn\u011B je lze izolovat, nap\u0159\u00EDklad matricovou izolac\u00ED za n\u00EDzk\u00FDch teplot. Pomoc\u00ED reaktivn\u00EDch meziprodukt\u016F lze \u010Dasto l\u00E9pe popsat pr\u016Fb\u011Bh reakce. Uhl\u00EDkat\u00FDmi reaktivn\u00EDmi meziprodukty jsou radik\u00E1ly, karbeny, karbokationty, karboanionty, aryny a karbyny."@cs . . . . . . . . "Reaktivn\u00ED meziprodukty jsou kr\u00E1tkodob\u00E9 a vysokoenergetick\u00E9 molekuly, vykazuj\u00EDc\u00ED vysokou reaktivitu, vznikaj\u00EDc\u00ED v pr\u016Fb\u011Bhu chemick\u00FDch reakc\u00ED, kde se rychle p\u0159em\u011B\u0148uj\u00ED na stabiln\u011Bj\u0161\u00ED \u010D\u00E1stice. Jen velmi v\u00FDjime\u010Dn\u011B je lze izolovat, nap\u0159\u00EDklad matricovou izolac\u00ED za n\u00EDzk\u00FDch teplot. Pomoc\u00ED reaktivn\u00EDch meziprodukt\u016F lze \u010Dasto l\u00E9pe popsat pr\u016Fb\u011Bh reakce. V\u011Bt\u0161ina chemick\u00FDch reakc\u00ED se skl\u00E1d\u00E1 z v\u00EDce d\u00EDl\u010D\u00EDch krok\u016F a reaktivn\u00ED meziprodukty se vyskytuj\u00ED pouze v n\u011Bkter\u00E9m z mezikrok\u016F. Posloupnost t\u011Bchto krok\u016F dohromady vytv\u00E1\u0159\u00ED reak\u010Dn\u00ED mechanismus. Reaktivn\u00ED meziprodukt se li\u0161\u00ED od reaktantu a v\u00FDsledn\u00E9ho produktu \u010Di prost\u00E9ho meziproduktu reakce pouze t\u00EDm, \u017Ee jej obvykle nelze izolovat; n\u011Bkter\u00E9 reaktivn\u00ED meziprodukty mohou v\u0161ak b\u00FDt pozorov\u00E1ny pomoc\u00ED rychl\u00FDch spektroskopick\u00FDch metod. Pokud reaktivn\u00ED meziprodukt nelze pozorovat, tak mus\u00ED b\u00FDt jeho existence potvrzena experiment\u00E1ln\u011B, co\u017E \u010Dasto spo\u010D\u00EDv\u00E1 ve zm\u011Bn\u011B reak\u010Dn\u00EDch podm\u00EDnek, jako jsou koncentrace reaktant\u016F a teplota, a vyu\u017Eit\u00ED postup\u016F z oblast\u00ED chemick\u00E9 kinetiky, termodynamiky nebo spektroskopie. Uhl\u00EDkat\u00FDmi reaktivn\u00EDmi meziprodukty jsou radik\u00E1ly, karbeny, karbokationty, karboanionty, aryny a karbyny."@cs . "Reactive intermediate"@en . . "Reactief intermediair"@nl . 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"Em Qu\u00EDmica, um intermedi\u00E1rio reativo \u00E9 uma esp\u00E9cie qu\u00EDmica, habitualmente de baixa estabilidade, que aparece e posteriormente desaparece no mecanismo de rea\u00E7\u00E3o. N\u00E3o aparece nem na rea\u00E7\u00E3o global, nem na equa\u00E7\u00E3o de taxa de rea\u00E7\u00E3o.1 A maioria das rea\u00E7\u00F5es qu\u00EDmicas s\u00E3o consecutivas (ou sucessivas), isto significa que para se completarem necessitam passar atrav\u00E9s de mais de uma etapa elementar. As esp\u00E9cies que s\u00E3o o produto de uma destas etapas e que se consomem numa etapa seguinte s\u00E3o os ."@pt . . 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"Reaktive Zwischenstufen bezeichnen in der Chemie energiereiche Teilchen, die als kurzlebige Zwischenprodukte in organischen und biochemischen Reaktionen auftreten. Reaktive Zwischenstufen zeichnen sich durch lokale Minima im aus und ben\u00F6tigen f\u00FCr ihre weitere Umsetzung eine sehr geringe Aktivierungsenergie. Da sie in einer mehrstufigen Reaktion nicht geschwindigkeitbestimmend sind, tauchen sie auch nicht in der Reaktionskinetik auf. Carbeniumionen treten beispielsweise als reaktive Zwischenstufen bei der SN1-Reaktion, C-C-Bindungskn\u00FCpfungen, Umlagerungen und Fragmentierungen auf."@de . . . . . . . . . . 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"\u0645\u0631\u0643\u0628 \u0648\u0633\u0637\u064A \u0646\u0634\u064A\u0637"@ar . . . . . "In chemistry, a reactive intermediate or an intermediate is a short-lived, high-energy, highly reactive molecule. When generated in a chemical reaction, it will quickly convert into a more stable molecule. Only in exceptional cases can these compounds be isolated and stored, e.g. low temperatures, matrix isolation. When their existence is indicated, reactive intermediates can help explain how a chemical reaction takes place. Most chemical reactions take more than one elementary step to complete, and a reactive intermediate is a high-energy, yet stable, product that exists only in one of the intermediate steps. The series of steps together make a reaction mechanism. A reactive intermediate differs from a reactant or product or a simple reaction intermediate only in that it cannot usually be isolated but is sometimes observable only through fast spectroscopic methods. It is stable in the sense that an elementary reaction forms the reactive intermediate and the elementary reaction in the next step is needed to destroy it. When a reactive intermediate is not observable, its existence must be inferred through experimentation. This usually involves changing reaction conditions such as temperature or concentration and applying the techniques of chemical kinetics, chemical thermodynamics, or spectroscopy. Reactive intermediates based on carbon are radicals, carbenes, carbocations, carbanions, arynes, and carbynes."@en . . . . . . . . "Een reactief intermediair is een fundamenteel begrip in de organische en anorganische chemie. Het slaat op een kortlevend en hoog-energetisch intermediair dat in een reactie gevormd wordt en een overschot of tekort aan elektronen bezit, waardoor het reactief is en gemakkelijk reacties aangaat en evolueert tot een meer stabiele molecuul. Reactieve intermediairen kunnen meestal niet als dusdanig ge\u00EFsoleerd worden. Veelvoorkomende reactieve intermediairen zijn carbokationen, carbanionen en radicalen. Andere voorbeelden van reactieve intermediairen zijn: \n* Areniumion \n* \n* Aryn \n* Carbeen \n* Carbeniumion \n* \n* Carboniumion \n* \n* Enol \n* Enolaat \n* \n* Iminium \n* Nitreen \n* \n* Oxonium \n* Pyridinium \n* \n* Tal van organische reacties verlopen met de vorming van reactieve intermediairen. De meeste reactieve intermediairen zijn zeer gevoelig voor aanvallen van elektrofielen of nucleofielen, al naargelang de structuur en ladingsverdeling van het intermediair. Een aantal reactieve intermediairen kunnen worden gestabiliseerd door resonantie of tautomerisatie (zoals de keto-enoltautomerie). Zo kan een carbanion door resonantie gestabiliseerd worden wanneer het zich naast een carbonylgroep bevindt. De negatieve lading van het carbanion wordt dan voor een groot deel gelokaliseerd op zuurstof (die een grotere elektronegativiteit dan koolstof bezit en daardoor liever een negatieve lading aanneemt)."@nl . "\u6D3B\u6027\u4E2D\u95F4\u4F53"@zh . . "Een reactief intermediair is een fundamenteel begrip in de organische en anorganische chemie. Het slaat op een kortlevend en hoog-energetisch intermediair dat in een reactie gevormd wordt en een overschot of tekort aan elektronen bezit, waardoor het reactief is en gemakkelijk reacties aangaat en evolueert tot een meer stabiele molecuul. Reactieve intermediairen kunnen meestal niet als dusdanig ge\u00EFsoleerd worden. Veelvoorkomende reactieve intermediairen zijn carbokationen, carbanionen en radicalen. Andere voorbeelden van reactieve intermediairen zijn:"@nl . "Reaktive Zwischenstufe"@de . . . . "1533644"^^ . . . . . "\uBC18\uC751\uC131 \uC911\uAC04\uCCB4"@ko . . . "\u6D3B\u6027\u4E2D\u95F4\u4F53\uFF08\u6216\u7A31\u6D3B\u5316\u932F\u5408\u7269/\u4E2D\u95F4\u4F53/\u6D3B\u6027\u4E2D\u9593\u7269\uFF09(Reactive intermediate) \u662F\u5316\u5B66\u53CD\u5E94\u904E\u7A0B\u4E2D\u7522\u751F\u7684\u5B58\u5728\u6642\u9593\u77ED\uFF0C\u80FD\u91CF\u9AD8\uFF0C\u9AD8\u53CD\u61C9\u6027\u7684\u5206\u5B50\uFF0E\u7576\u53CD\u61C9\u7522\u751F\u6642\u6703\u5FEB\u901F\u7684\u8F49\u8B8A\u6210\u66F4\u7A69\u5B9A\u7684\u5206\u5B50\u3002\u53EA\u6709\u5728\u7279\u6B8A\u60C5\u6CC1\u4E0B\u624D\u80FD\u5C07\u5176\u5206\u96E2\u51FA\u4F86\u4E26\u5132\u5B58\uFF0C\u6BD4\u5982\u4F4E\u6EAB\u3002\u4E2D\u9593\u9AD4\u7684\u5B58\u5728\u80FD\u5920\u5E6B\u52A9\u89E3\u91CB\u90E8\u5206\u5316\u5B78\u53CD\u61C9\u5982\u4F55\u9032\u884C\u3002 \u591A\u6578\u5316\u5B78\u53CD\u61C9\u70BA\u591A\u6B65\u53CD\u61C9\uFF0C\u5373\u53CD\u61C9\u4E0D\u6703\u4E00\u6B21\u5B8C\u6210\u3002\u4E14\u6D3B\u6027\u4E2D\u9593\u9AD4\u9AD8\u80FD\u91CF\uFF0C\u4E0D\u7A69\u5B9A\uFF0C\u5BB9\u6613\u518D\u53CD\u61C9\u8B8A\u6210\u7522\u7269\u3002\u6709\u6A5F\u5316\u5B78\u4E2D\uFF0C\u6D3B\u6027\u5E38\u898B\u7684\u6D3B\u6027\u4E2D\u9593\u9AD4\u6709\u78B3\u6B63\u79BB\u5B50\u3001\u78B3\u8D1F\u79BB\u5B50\u3001\u81EA\u7531\u57FA\u548C\u5361\u5BBE\u7B49\u3002\u6D3B\u6027\u4E2D\u9593\u9AD4\u901A\u5E38\u96E3\u4EE5\u5206\u96E2\uFF0C\u4E26\u4E14\u53EA\u80FD\u901A\u904E\u5149\u8B5C\u624B\u6BB5\u89C0\u6E2C\u3002\u6709\u4E9B\u5206\u6B65\u9032\u884C\u7684\u5408\u6210\u8DEF\u5F91\u6D89\u53CA\u8F03\u7A69\u5B9A\u7684\u4E2D\u9593\u9AD4\uFF0C\u4F8B\u5982\u683C\u6C0F\u8A66\u5291\u7684\u88FD\u5099\uFF0C\u78B3\u8CA0\u96E2\u5B50\u3001\u919A\u548C\u8207\u9382\u96E2\u5B50\u5F62\u6210\u7D61\u5408\u7269\uFF0C\u7A69\u5B9A\u4E86\u78B3\u8CA0\u96E2\u5B50\u4E2D\u9593\u9AD4\u3002\u6B64\u683C\u5F0F\u8A66\u5291\u518D\u7528\u65BC\u5404\u7A2E\u70F7\u57FA\u5316\u53CD\u61C9\u3002 \n* \u78B3\u7684\u53CD\u61C9\u4E2D\u9593\u9AD4 \n* \u81EA\u7531\u57FA \n* \u5361\u5BBE \n* \u78B3\u6B63\u96E2\u5B50 \n* \u78B3\u8CA0\u96E2\u5B50 \n* \u5361\u62DC \n* \u82EF\u7094"@zh . "Intermedi\u00E1rio reativo"@pt . . "\uD654\uD559\uC5D0\uC11C \uBC18\uC751\uC131 \uC911\uAC04\uCCB4(reactive intermediate) \uB610\uB294 \uC911\uAC04\uCCB4(intermediate)\uB294 \uC9E7\uC740 \uC2DC\uAC04 \uC874\uC7AC\uD558\uACE0, \uACE0\uC5D0\uB108\uC9C0\uC5D0, \uACE0\uBC18\uC751\uC131\uC758 \uBD84\uC790\uC774\uB2E4. \uD654\uD559 \uBC18\uC751\uC5D0\uC11C \uBC18\uC751\uC131 \uC911\uAC04\uCCB4\uAC00 \uC0DD\uC131\uB418\uBA74 \uBE60\uB974\uAC8C \uB354 \uC548\uC815\uD55C \uBD84\uC790\uB85C \uBCC0\uD658\uB41C\uB2E4. \uBC18\uC751 \uC911\uAC04\uCCB4(reaction intermediate)\uB294 cumene process\uC758 cumene\uCC98\uB7FC \uB9E4\uC6B0 \uC548\uC815\uD55C \uBD84\uC790\uB3C4 \uD3EC\uD568\uD55C\uB2E4."@ko . . . . . . . "Em Qu\u00EDmica, um intermedi\u00E1rio reativo \u00E9 uma esp\u00E9cie qu\u00EDmica, habitualmente de baixa estabilidade, que aparece e posteriormente desaparece no mecanismo de rea\u00E7\u00E3o. N\u00E3o aparece nem na rea\u00E7\u00E3o global, nem na equa\u00E7\u00E3o de taxa de rea\u00E7\u00E3o.1 A maioria das rea\u00E7\u00F5es qu\u00EDmicas s\u00E3o consecutivas (ou sucessivas), isto significa que para se completarem necessitam passar atrav\u00E9s de mais de uma etapa elementar. As esp\u00E9cies que s\u00E3o o produto de uma destas etapas e que se consomem numa etapa seguinte s\u00E3o os . Os intermedi\u00E1rios reacionais normalmente t\u00EAm vida curta e s\u00E3o raramente isolados, sendo algumas vezes apenas postulados teoricamente. Tecnicamente s\u00E3o definidos como esp\u00E9cies que t\u00EAm tempos de vida maiores do que uma de suas vibra\u00E7\u00F5es moleculares."@pt . . . . . . "\uD654\uD559\uC5D0\uC11C \uBC18\uC751\uC131 \uC911\uAC04\uCCB4(reactive intermediate) \uB610\uB294 \uC911\uAC04\uCCB4(intermediate)\uB294 \uC9E7\uC740 \uC2DC\uAC04 \uC874\uC7AC\uD558\uACE0, \uACE0\uC5D0\uB108\uC9C0\uC5D0, \uACE0\uBC18\uC751\uC131\uC758 \uBD84\uC790\uC774\uB2E4. \uD654\uD559 \uBC18\uC751\uC5D0\uC11C \uBC18\uC751\uC131 \uC911\uAC04\uCCB4\uAC00 \uC0DD\uC131\uB418\uBA74 \uBE60\uB974\uAC8C \uB354 \uC548\uC815\uD55C \uBD84\uC790\uB85C \uBCC0\uD658\uB41C\uB2E4. \uBC18\uC751 \uC911\uAC04\uCCB4(reaction intermediate)\uB294 cumene process\uC758 cumene\uCC98\uB7FC \uB9E4\uC6B0 \uC548\uC815\uD55C \uBD84\uC790\uB3C4 \uD3EC\uD568\uD55C\uB2E4."@ko . "Reaktive Zwischenstufen bezeichnen in der Chemie energiereiche Teilchen, die als kurzlebige Zwischenprodukte in organischen und biochemischen Reaktionen auftreten. Reaktive Zwischenstufen zeichnen sich durch lokale Minima im aus und ben\u00F6tigen f\u00FCr ihre weitere Umsetzung eine sehr geringe Aktivierungsenergie. Da sie in einer mehrstufigen Reaktion nicht geschwindigkeitbestimmend sind, tauchen sie auch nicht in der Reaktionskinetik auf. Wichtige reaktive Zwischenstufen sind vor allem Carbeniumionen, Carbanionen, Radikale, Carbene und Nitrene. Oft ist die Lebensdauer einer reaktiven Zwischenstufe zu kurz f\u00FCr eine klare spektroskopische Charakterisierung. Bisweilen kann dann die Matrixisolations-Technik weiterhelfen. Carbeniumionen treten beispielsweise als reaktive Zwischenstufen bei der SN1-Reaktion, C-C-Bindungskn\u00FCpfungen, Umlagerungen und Fragmentierungen auf."@de . . . . . . . . . . "Reaktivn\u00ED meziprodukt"@cs . . "3893"^^ . . . "1094402272"^^ . . .