
nitrogen-15 paramanu chumbakiya anunaad spectroscopy

nitrogen-15 paramanu chumbakiya anunaad spectroscopy (nitrogen-15 nmr spectroscopy, yaa buss 15aine nmr) paramanu chumbakiya anunaad spectroscopy kaa ack sanskaran haye joe 15aine naabhik vaale namoonon kii jaanch kartaa haye. 15n nmr adhik samanya 13c aur 1h nmr seey kaee mayanon mein alag haye. chaturbhuj key maap seey judee kathinaaiyon koo darkinar karane key liye, spin-1 14aine nucleid, 15aine nmr koo pataa lagaane key liye namoonon mein niyojit kiya jaataa haye kyonki isamen 1⁄2 kii ground-state spin hoti haye. kyonki 14aine 99.64% prachur matra mein haye, namoonon mein 15aine koo shamil karane key liye aksar naee synthetic takneekon kii aavashyakta hoti haye.
nitrogen-15 kaa upayog aksar paramanu chumbakiya anunaad spectroscopy (nmr) mein kiya jaataa haye, kyonki adhik prachur matra mein nitrogen-14 key vipareet, jisamen ack purnank paramanu spin hotaa haye aur iss prakaar ack chaturbhuj kshan hotaa haye, 15aine mein aadhe kaa ack aanshik paramanu spin hotaa haye, joe sankeern rekha chaudaai kii tarah nmr key liye laabh pradaan kartaa haye. nitrogen key ekmatra srot key roop mein nitrogen-15 vaale madhyam mein protein kii kheti karke isotopic roop seey label kiya jaa sakata haye. isake alawa, nitrogen-15 kaa upayog matratmak proteomics (ee.jee. sylac).
karyanvayan.
15n nmr mein jatilataaen hain jinka saamana 1h aur 13c nmr spectroscopy mein naheen kiya gayaa haye. 15n kii praakritik prachurta key parinamswarup ack badaa samvedansheelta dund hotaa haye. samvedansheelta koo isake cumm gair-chumbakiya anupaat (γ = − 27.126 × 106 t − 1s − 1) seey badatar banaa diyaa jaataa haye, joe kii 1 ghante kaa 10.14% haye. 1 ghante key liye sanket-seey-shore kaa anupaat samaan chumbakiya kshetra kii taakat parr 15n seey lagbhag 300 gunaa adhik haye.
bhautik guna.
15n key bhautik guna anya naabhikon seey kaafee alag hain. isake kaee samanya naabhikon key saath isake gunon koo neeche dee gaee talika mein sankshep mein prastut kiya gayaa haye.
rasayanik parivartan key rujhaan.
shuddh aur anuprayukt rasayan vigyaan kaa antarrashtriya sangh (iupac) prayogaatmak maanak key roop mein ch3no2 kaa upayog karane kii sifarish kartaa haye; haalaanki vyavhaar mein kaee spectroscopist isake bajaay dabaavyukt nh3 (l) kaa upayog karate hain. 15n key liye, nh3 (l) key saath sandarbhit rasayanik parivartan ch3no2 (δnh3 = δch3no2 + 380.5 pppm) seey 380.5 pppm upfield hain. 15n key liye rasayanik parivartan kuchh hudd taka aniyamit hotey hain lekin aam taur parr way ch3no2 key sambandh mein-400 pppm seey 1100 pppm kii seema taka faile hotey hain. neeche samanya carbonic samoohon key liye 15n rasayanik parivartanon kaa saransh diyaa gayaa haye, jiska sandarbh nh3 key sambandh mein diyaa gayaa haye, jiska rasayanik parivartan 0 pppm nirdhaarit kiya gayaa haye.
gair-chumbakiya anupaat.
adhikansh naabhikon key vipareet, 15n key liye gair-chumbakiya anupaat nakaratmak haye. spin precession ghatana key saath, γ kaa sanket precession key arth (ghadee kii disha banaam ghadee kii vipareet disha) koo nirdhaarit kartaa haye. adhikansh samanya naabhikon mein sakaratmak gair-chumbakiya anupaat hotey hain jaise kii 1h aur 13c.
aavedan.
tatomerization.
15n nmr kaa upayog javic seey laker acarbonic takneekon taka key kshetron kii ack vistrit shrinkhala mein kiya jaataa haye. carbonic sanshleshan mein ack prasiddh anuprayog haye 15n kaa upayog visham-aeromatics mein tatomerization santulan kii nigrani key liye karna kyonki tatomers key beach 15n shift mein naatakiya parivartan hotaa haye. 
protein nmr.
15aine nmr protein nmr jaanch mein bhee behad moolyavaan haye. vishesh roop seey, 15n key saath tri-ayami prayogon kii shuruat 13c-13c dwi-ayami prayogon mein aspashtata koo badhaati haye. udaaharan key liye, thhos-avastha paramanu chumbakiya anunaad (aiss. aiss. aine. aim. aar.) mein, 15aine kaa upayog aamtaur parr aine. see. aeye. see. aiks., aine. see. oh. see. aiks. aur cancox puls anukramon mein kiya jaataa haye. 
nitrogen yukt visham-chakron kii jaanch.
15n nmr nitrogen parmaanuon (tetrazole, trikoniya aur unake analyted analogue) kii uchch samagri key saath visham-chakron kii sanrachana kii jaanch key liye sabse prabhaavi vidhi haye. nitrogen visham-chakron kii sanrachanaon aur rasayanik parivartanon koo sthaapit karane key liye 15aine labeling key baad 13see-15aine aur 1aich-15aine coupling key vishleshan kaa upayog kiya jaa sakata haye.
ayogya.
dhruvikaran hastaantaran (aksham) dwara samvedi naabhik koo badhaaya jaanaa ack sanket sankalp vriddhi vidhi haye. kyonki 15n kaa ack gair-chumbakiya anupaat haye joe parimaan mein chhota haye, resolution kaafee kharaab haye. ack samanya naadi anukram joe naatakiya roop seey 15n key liye sankalp mein sudhaar kartaa haye, aksham haye. aksham jyaadaatar mamalon mein ack suruchipurna samadhan haye kyonki yeh boltzman dhruvikaran koo badhaata haye aur tii1 maanon koo cumm kartaa haye (iss prakaar scan chhote hotey hain). isake alawa, aksham nakaratmak gair-chumbakiya anupaat koo samaayojit curr sakata haye, jabaki samanya paramanu overhoser prabhaav (aine. oh. ee.) naheen curr sakata haye.

