
chhadm chitran

rasayan vigyaan mein, ack chhadmashoth sanlagn samoohon (i.ee.ligand) ack atyadhik samamit anu parr, joe praarambhik anu seey aprabhedya anu kii or leey jaataa haye. shuddh aur anuprayukt rasayan vigyaan kaa antarrashtriya sangh (iupac) ack chhadmashoth koo ack "stereoisomericaran key roop mein paribhaashit kartaa haye jisake parinamswarup ack sanrachana hoti haye joe poore praarambhik anu key ghoornan dwara utpann hoti haye", jiska parinam ack "utpaad" haye joe praarambhik anu parr "superposable" haye, jaba taka kii isotopic pratisthaapan sahit pratisthaapan dwara vibhinn sthitiyon koo alag naheen kiya jaataa haye." 
prasiddh udaaharan berry sudorotation tantra dwara trikoniya dwi-pyramide yaugikon kaa intramolicular isomerization haye, aur cyclopenton dwara pradarshit carbon parmaanuon kii samtal gati, joe isake kaee sambhaavit anuroopakon (lifafa, modd) key beach anubhav karane vaale antar-parivartanon kii or leey jaati haye. dhyaan dein, iss gati seey koee koniya gati utpann naheen hoti haye. inn aur sambandhit udaharanon mein, paramanu sthitiyon kaa ack chhota visthaapan samamit utpaad key punah roop lene taka samroopata key nuksan kii or leey jaataa haye (neeche chhavi udaaharan dekhein), jahaan yeye visthaapan aamtaur parr cumm-oorjaa maargon key saath hotey hain. berry tantra yaugikon key prakaron mein akshiya aur bhoomadhyarekhiya ligand key saral antar-roopaantaran koo sandarbhit kartaa haye, ee.jee. d3h-samamit (dikhaaya gayaa). anta mein, ack aupchaarik arth mein, "chhadm-sanketan" shabd kaa uddeshya vishesh roop seey samamit anuon mein gatishilata koo sandarbhit karna haye, halanki usee prakaar key tantra koo cumm samroopata anuon key liye bhee lagu kiya jaataa haye.