
samarupata (rasayanshastra)

rasayanshastrat, samarupata () kinwa samarupata vikhandan mhanje eka prakriyedvare aanvik bandhanche pruthakkaran jethe pratyek tukada (anoo kinwa renu) mool bandhit electronpaiki eka rakhoon thevato. samsankhyetil electron asalelya tatasth renuchya samamiteey vikhandanadarmyan, done mukt mooldravye tayar hotil. mhanjech, mool bandhat guntalele done electron done tukadyanchya prajatinmadhye vitareet kele jaatat. heterolysis navachya prakriyedvare dekhil bandh todane shakya aahe. 
yaa prakriyet samavisht asalelya urjela bandh pruthakkaran urja (bii. dii. eae.) mhanatat. bii. dii. eae. chee vyakhya 'samarupi vishleshanadvare kahee vishisht aanvik ghatakache dilele bandh todanyasathi aavashyak asaleli enthalpy (prati moll)' ashee kelee jaate, jeey 'dii' mhanoon chinhankit kele jaate. bii. dii. eae. heey bandhanchya samarthyavar avalambun asate, jeey parinami yenanya moolgami prajatinchya sthirateshi sambandhit ghatkandware nirdharit kele jaate.
asha prakare bandh todanyasathi aavashyak asalelya tulanene uchch urjemule, homolysis pramukhyane vishisht paristhitinmadhye hoteh
yavyatirikt, kahee prakarananmadhye daab muldravyanchi nirmiti karnyas pravrutt karoo shakato. yaa paristhiti pudhil sarvoch aanvik kakshet electron uttejit karatat, asha prakare eka swatantrapane vyapalela aanvik kakshiy (somo) tayar hoto.
adenosylcobalamine haah eka cofactor aahe joou methylmalonil-coa mutage, isobuteril-coa mutage aanee sambandhit enzymesdware utprerit pratikriyanmadhye cobalt-carbon bandhanchya homolitic vighatanadvare deoxiadenosil radical tayar karato. heey jyaa tharanvar enzymes karya karatat tyaa tharanchya carbon chaukatit punarrachanechya pratikriyanna chalana dete.
samvichhedanala chalana denare ghatak.
prakash kinwa ushnatetun urja shoshun ghenyachya renuchya kshamatedvare aanee bandh pruthakkaran urja (enthalpy) dware samaroop vichhedan chalate. jarr muldravyanchi prajati mukt muldravyanna sthir karnyas adhik saksham asel tarr bandh pruthakkaran urjepramanech somochi urja qamee hoil. bandh vichhedan urja anek ghatkandware nirdharit kelee jaateh