Join TSR
 
 About Us | FAQs | Sign in
 
HomeForumsArticlesRevision NotesPersonal StatementsUniversity GuidesHealth & RelationshipsPostgraduate StudyCareersFreshers
Join the UK's largest student community  
Advanced
Search

Join The Student Room Today

Be part of the UK's largest and fastest growing student community.

It's free to join and a lot of fun - Get inspired, express your ideas, interact and share

Join The Student Room Today

RSS  Chemistry discussion, revision and homework help.
Reply
Useful Resources:
Chemistry Revision Notes, GCSE Chemistry Essays, A Level Chemistry Essays, Chemistry Guide, Biochemistry Guide
 
 Announcements   Posted By
 
Old 04-12-2008: 4th December 2008 15:05 #1 
Sunnydazzleeyes's Avatar
Sunnydazzleeyes Sunnydazzleeyes is offline Female
Exalted and Worshipped Member
Thread Starter
Sunnydazzleeyes is on a distinguished road
 United Kingdom
Join Date: Jun 2006
Location: HOME
Posts: 1,388
My Societies
Default 18 electron?
 
Is: [HCo(POPh3)4] a 18 electron complex?

Co is a +1 oxidation state
 
Register to remove banners from posts.
Old 04-12-2008: 4th December 2008 15:09 #2 
dream123's Avatar
dream123 dream123 is offline
Peer Of The TSR Realm
dream123 is infamous around these partsdream123 is infamous around these parts
Join Date: Oct 2007
Location: in a house
Posts: 1,891
My Societies
Default Re: 18 electron?
 
Originally Posted by Sunnydazzleeyes
Is: [HCo(POPh3)4] a 18 electron complex?

Co is a +1 oxidation state
does the complex have an overall charge?
Old 04-12-2008: 4th December 2008 16:17 #3 
Sunnydazzleeyes's Avatar
Sunnydazzleeyes Sunnydazzleeyes is offline Female
Exalted and Worshipped Member
Thread Starter
Sunnydazzleeyes is on a distinguished road
 United Kingdom
Join Date: Jun 2006
Location: HOME
Posts: 1,388
My Societies
Default Re: 18 electron?
 
Originally Posted by dream123
does the complex have an overall charge?
the complex does not have a overall charge, I don't think!
 
Old 04-12-2008: 4th December 2008 17:15 #4 
Sunnydazzleeyes's Avatar
Sunnydazzleeyes Sunnydazzleeyes is offline Female
Exalted and Worshipped Member
Thread Starter
Sunnydazzleeyes is on a distinguished road
 United Kingdom
Join Date: Jun 2006
Location: HOME
Posts: 1,388
My Societies
Default Re: 18 electron?
 
i think it has a 18 electron because

ionic model:
Co(I) d8 = 8e
POPh x 4 = 8
H = 2e
which gives 18 electrons

covalent model
H = 1e
4 x 2 of POPh3 =8
Co = 9
total 18 electrons
 
Old 04-12-2008: 4th December 2008 17:15 #5 
Sunnydazzleeyes's Avatar
Sunnydazzleeyes Sunnydazzleeyes is offline Female
Exalted and Worshipped Member
Thread Starter
Sunnydazzleeyes is on a distinguished road
 United Kingdom
Join Date: Jun 2006
Location: HOME
Posts: 1,388
My Societies
Default Re: 18 electron?
 
is this right anyone?
Please help.
 
Old 04-12-2008: 4th December 2008 23:57 #6 
cpchem cpchem is online now Male
Vengeful, Imperial Overlord of The Student Room
PS Helper
cpchem has more reputation than sensecpchem has more reputation than sensecpchem has more reputation than sensecpchem has more reputation than sensecpchem has more reputation than sensecpchem has more reputation than sensecpchem has more reputation than sensecpchem has more reputation than sensecpchem has more reputation than sensecpchem has more reputation than sensecpchem has more reputation than sensecpchem has more reputation than sense
Join Date: Nov 2005
Location: Oxford/London
My Societies
Default Re: 18 electron?
 
Originally Posted by Sunnydazzleeyes
i think it has a 18 electron because

ionic model:
Co(I) d8 = 8e
POPh x 4 = 8
H = 2e
which gives 18 electrons

covalent model
H = 1e
4 x 2 of POPh3 =8
Co = 9
total 18 electrons
I agree.
 
Old 05-12-2008: 5th December 2008 08:43 #7 
Sunnydazzleeyes's Avatar
Sunnydazzleeyes Sunnydazzleeyes is offline Female
Exalted and Worshipped Member
Thread Starter
Sunnydazzleeyes is on a distinguished road
 United Kingdom
Join Date: Jun 2006
Location: HOME
Posts: 1,388
My Societies
Default Re: 18 electron?
 
thank you for your help soo grateful
 
 
Thread Tools Search this Thread
Search this Thread
Advanced
Search