--%>
Assignment Help - homework help

  Types of ligands

Types of ligands:

Whenever a ligand is bound to a metal ion via single donor atom, with Cl-, H2O or NH3, then the ligand is said to be unidentate. Whenever a single coordinating group or ligand occupies two or more coordination place on similar central metal ions, a complex possessing a closed ring is made. Such ligands are termed as polydentate ligands. If a single ligand has two coordinating positions, it is termed as bidentate ligand and whenever there are three coordinating places available, it is termed as tridentate ligand and so on. For illustration, ethylenediamine is a bidentate ligand since it has two amino groups each of which can contribute a pair of electrons.

14_ligands.jpg

Name of the ligands:

Positive ligands:

The positive ligands are termed with an ending -ium.

NH2 - NH3+ hydrazinium

This ligand, however positive can bind via the uncharged nitrogen.

Neutral ligands:

The neutral ligands are termed as such without any special name. However water is written as ‘aqua: Ammonia is written as ammine. Remind that two m’s to distinguish from organic amine

CO-Carbonyl, NO-Nitrosyl, NH2- CH2 - CH2- NH2-ethylenediamine (en), Pyridine C5H5N.

Negative Ligands:

Negative ligands ending in suffix ‘O’.


Illustration:

F--Fluoro, Cl--Chloro, C2O42--Oxalato, CN--Cyano, NO2--Nitro,Br--Bromo, SO42--Sulphato, CHCOO--acetato CNS–-thiocyanato, NCS--isothiocyanato, S2O32--thiosulphato.

 

Latest technology based Chemistry Online Tutoring Assistance

Tutors, at the www.tutorsglobe.com, take pledge to provide full satisfaction and assurance in Coordination Compounds homework help via online tutoring. Students are getting 100% satisfaction by online tutors across the globe. Here you can get homework help for Coordination Compounds, project ideas and tutorials. We provide email based Coordination Compounds homework help. You can join us to ask queries 24x7 with live, experienced and qualified online tutors specialized in Coordination Compounds. Through Online Tutoring, you would be able to complete your homework or assignments at your home. Tutors at the TutorsGlobe are committed to provide the best quality online tutoring assistance for Inorganic-Chemistry Homework Help and assignment help services. They use their experience, as they have solved thousands of the Chemistry assignments, which may help you to solve your complex issues of Coordination Compounds. TutorsGlobe assure for the best quality compliance to your homework. Compromise with quality is not in our dictionary. If we feel that we are not able to provide the homework help as per the deadline or given instruction by the student, we refund the money of the student without any delay.