HOME PAGE * KS3 SCIENCES * GCSE BIOLOGY CHEMISTRY PHYSICS * ADVANCED LEVEL CHEMISTRY

SPECTROSCOPY INDEXES  *  All Advanced Organic Chemistry Notes  *  [SEARCH BOX]

Advanced Organic Chemistry: Mass spectrum of Pentane

Mass spectrum of Pentane

Doc Brown's Chemistry Advanced Level Pre-University Chemistry Revision Study Notes for UK IB KS5 A/AS GCE advanced A level organic chemistry students US K12 grade 11 grade 12 organic chemistry courses involving molecular spectroscopy analysing mass spectra

image diagram mass spectrum of pentane fragmentation pattern of ions for analysis and identification of pentane doc brown's advanced organic chemistry revision notes 

Pentane  C5H12, alkanes structure and naming (c) doc b , alkanes structure and naming (c) doc b , alkanes structure and naming (c) doc b

Interpreting the mass spectrum of pentane

[M]+ is the molecular ion peak (M), with an m/z of 72 corresponding to [C5H12]+, the original molecule minus an electron, [CH3CH2CH2CH2CH3]+.

The small M+1 peak at m/z 73, corresponds to an ionised pentane molecule with one 13C atom in it i.e. an ionised molecule of formula 13C12C4H12

Identifying the species giving the most prominent ? peaks (apart from M) in the fragmentation pattern of ?

m/z value of [fragment]+ 57 43 42 41 39 29 27
molecular fragment CH3CH2CH2CH2 CH3CH2CH2 C3H6 C3H5 C3H3 CH3CH2 C2H3

Explaining the principal fragments e.g.

from splitting the linear carbon chain of pentane

[CH3CH2CH2CH2CH3]+  ===>  [CH3CH2CH2CH2]+  +  CH3

[CH3CH2CH2CH2CH3]+  ===>  [CH3CH2CH2]+  +  CH3CH2

[CH3CH2CH2CH2CH3]+  ===>  [CH3CH2]+  +  CH3CH2CH2

-

-


Key words & phrases: how to interpret and explain the mass spectrum of pentane,  image and diagram of the mass spectrum of pentane, details of the mass spectroscopy of pentane,  low and high resolution mass spectrum of pentane, prominent m/z peaks in the mass spectrum of pentane, comparative mass spectra of pentane, the molecular ion peak in the mass spectrum of pentane, analysing and understanding the fragmentation pattern of the mass spectrum of pentane, characteristic pattern of peaks in the mass spectrum of pentane, relative abundance of mass ion peaks in the mass spectrum of pentane, revising the mass spectrum of pentane, revision of mass spectroscopy of pentane, most abundant ions in the mass spectrum of pentane, how to construct the mass spectrum diagram for abundance of fragmentation ions in the mass spectrum of pentane


Associated links

The chemistry of ALKANES revision notes INDEX

Mass spectroscopy index

ALL SPECTROSCOPY INDEXES

All Advanced Organic Chemistry Notes

Use My Google search site box

Email doc b: chem55555@hotmail.com

TOP OF PAGE

 Doc Brown's Chemistry 

*

TOP OF PAGE

latest video game release, latest pop music releases, download free music, latest film releases, latest high street fashion in clothes, fashionable trending in clothing, girls buy clothes, spend a lot of money on clothes, shoes, sweets and chocolates, magazines and make-up. Boys buy food and drink, computer games, DVDs and CDs, girls and boys spend a lot of money on credit for mobile phones, buses and trains to transport them going out. Girls spend a lot of money on clothes color colour preferences in clothes, cool sunglasses, boys  buy expensive things like designer sports clothes and trainers, teenagers save for holidays, clothes, mobile phones, birthday presents and electronic goods, teenage accessories, Favourite style of jeans. A typical girl’s shopping list includes mobile phone credit deals, fashionable quality cool airpods, air pods, fashionable clothes, the most popular favourite sneakers, fancy shoes, sweets, chocolates, magazines, lip moisturizer , lots on make-up, well being, teenage decor decorating their room, teenagers like LED string lantern lights, beauty products for teenagers, denim jackets, scrunchies coolness, fashionable back packs, typical boy’s shopping list includes mobile credit deals, eating out takeaway food and drinks, what teenagers like to buy in clothes, computer games, DVDs, CDs, what teenagers talk about, what teenagers worry about, what teenagers like to do for fun sports, what cool things do teenagers buy, resale websites like eBay Teenager education word cloud how do I apply to university to study biology?, what courses are available at university to study biology?, what grades do I need to get to university to study biology?, how do I apply to university to study chemistry?, what courses are available at university to study chemistry?, what grades do I need to get to university to study chemistry?, how do I apply to university to study physics?, what courses are available at university to study physics?, what grades do I need to get to university to study physics?, how do I apply to university to study biomedical sciences?, what courses are available at university to study biomedical sciences?, what grades do I need to get to university to study biomedical sciences, how do I apply to university to study medicine?, what courses are available at university to study medicine?, what grades do I need to get to university to study medicine?, how do I apply to university to study biochemistry?, what courses are available at university to study biochemistry?, what grades do I need to get to university to study biochemistry?, how do I apply to university to study mathematics?, what courses are available at university to study mathematics?, what grades do I need to get to university to study mathematics?, how do I apply to university to study chemical engineering?, what courses are available at university to study chemical engineering?, what grades do I need to get to university to study chemical engineering?, how do I apply to university to study civil engineering?, what courses are available at university to study civil engineering?, what grades do I need to get to university to study civil engineering?, how do I apply to university to study electrical engineering?, what courses are available at university to study electrical engineering?, what grades do I need to get to university to study electrical engineering?, how do I apply to university to study computer science?, what courses are available at university to study computer science?, what grades do I need to get to university to study computer science?,