Qhov sib txawv tseem ceeb ntawm prototropy thiab tautomerism yog tias prototropy tham txog ob hom ntawm cov molecule uas sib txawv ntawm ib leeg nkaus xwb nyob rau hauv txoj hauj lwm ntawm ib qho proton thaum tautomerism tham txog kev sib hloov ntawm ob lub qauv isomers ntawm kev hloov ntawm atoms lossis bonds.
Prototropy yog ib daim ntawv ntawm tautomerism; nws yog qhov feem ntau ntawm tautomerism. Tautomerism yog ib lub tswv yim nyob rau hauv cov organic chemistry uas piav qhia txog kev hloov pauv ntawm ib qho isomer mus rau lwm qhov isomer los ntawm kev hloov pauv ntawm atoms lossis bonds. Yog hais tias qhov kev hloov chaw tshwm sim nyob rau hauv ib tug proton nyob rau hauv lub molecule, ces peb hu nws prototropy. Yog li ntawd, hom tautomerism no hu ua prototropic-tautomerism.
YPrototropy yog dab tsi?
Prototropy yog ib hom tautomerism qhov chaw hloov chaw ntawm proton tshwm sim. Nws yog qhov feem ntau ntawm tautomerism. Yog li ntawd, nws tseem hu ua prototropic-tautomerism. Peb tuaj yeem txiav txim siab tias nws yog ib qho kev coj tus cwj pwm ntawm acid-base. Cov prototropic tautomers yog isomers uas undergo isomeric protonation ntawm molecules uas muaj tib cov qauv empirical thiab tag nrho cov nqi. Cov kua qaub thiab cov hauv paus tuaj yeem ua rau cov tshuaj tiv thaiv no.
Muaj ob hom prototropic-tautomerism; annular tautomerism thiab nplhaib-chain tautomerism. Nyob rau hauv lub annular tautomerism, ib tug proton nyhav nyob rau hauv ob los yog ntau tshaj txoj hauj lwm ntawm ib tug heterocyclic system. Nyob rau hauv lub nplhaib-chain tautomerism, lub zog ntawm cov proton yog nrog los ntawm kev hloov ntawm ib tug qhib qauv mus rau lub nplhaib qauv.
Tautomerism yog dab tsi?
Tautomerism yog ib lub tswv yim nyob rau hauv cov organic chemistry uas piav qhia txog cov txiaj ntsig ntawm muaj ntau lub tebchaw uas muaj peev xwm ntawm kev hloov pauv ntawm kev hloov pauv ntawm atom lossis tshuaj lom neeg. Hom kev hloov pauv no feem ntau tshwm sim hauv cov amino acids thiab nucleic acids. Cov txheej txheem ntawm kev hloov pauv yog hu ua tautomerization, uas yog cov tshuaj tiv thaiv tshuaj. Hauv cov txheej txheem kev hloov pauv no, kev hloov pauv ntawm cov protons lossis cov ntawv cog lus tshuaj txhais tau tias kev sib pauv ntawm hydrogen atom ntawm ob hom atoms lossis kev tsim sai lossis tawg ntawm ib lossis ob daim ntawv cog lus.
Yog tautomerization tshwm sim nrog kev hloov chaw ntawm proton, ces nws hu ua prototropy. Yog tias tautomerization tshwm sim nrog kev hloov chaw ntawm ib qho lossis ob daim ntawv cog lus, ces nws yog hu ua valence tautomerism. Cov atom hydrogen tsim ib daim ntawv cog lus nrog cov atom tshiab uas tau txais cov hydrogen atom. Tautomers muaj nyob rau hauv equilibrium nrog ib leeg. Lawv ib txwm muaj nyob hauv kev sib xyaw ntawm ob hom kev sib xyaw txij li lawv sim npaj cov ntawv tautomeric cais.
Daim duab 01: Valence Tautomerism
Thaum tus txheej txheem ntawm tautomerization, carbon skeleton ntawm ib lub molecule tsis hloov. Tsuas yog txoj hauj lwm ntawm protons thiab electrons hloov. Cov txheej txheem yog cov txheej txheem tshuaj intramolecular ntawm kev hloov pauv ntawm ib daim ntawv ntawm tautomer rau hauv ib daim ntawv sib txawv. Ib qho piv txwv zoo yog keto-enol Tautomerism. Nws yog cov tshuaj tiv thaiv acid lossis base-catalyzed. Feem ntau, keto daim ntawv ntawm cov organic compound yog ruaj khov dua, tab sis hauv qee lub xeev, daim ntawv enol ruaj khov dua li daim ntawv keto.
Qhov txawv ntawm Prototropy thiab Tautomerism yog dab tsi?
Prototropy thiab tautomerism yog cov ntsiab lus zoo sib xws; prototropy yog hom tautomerism. Qhov sib txawv tseem ceeb ntawm prototropy thiab tautomerism yog tias prototropy sib tham txog ob hom ntawm cov molecule uas txawv ntawm ib leeg tsuas yog nyob rau hauv txoj hauj lwm ntawm ib qho proton thaum tautomerism sib tham txog kev sib hloov ntawm ob lub isomers ntawm kev hloov ntawm atoms los yog bonds.
Hauv qab no yog cov ntsiab lus ntawm qhov sib txawv ntawm prototropy thiab tautomerism hauv daim ntawv tabular.
Summary – Prototropy vs Tautomerism
Prototropy thiab tautomerism yog cov ntsiab lus zoo sib xws; prototropy yog hom tautomerism. Qhov sib txawv tseem ceeb ntawm prototropy thiab tautomerism yog tias prototropy tham txog ob hom ntawm cov molecule uas txawv ntawm ib leeg tsuas yog nyob rau hauv txoj hauj lwm ntawm ib qho proton whereas tautomerism tham txog kev sib hloov ntawm ob lub isomers los ntawm kev hloov ntawm atoms lossis bonds.
