Assignment Help - homework help

  IUPAC Nomenclature of Coordination Compounds

IUPAC Nomenclature of Mononuclear Coordination Compounds:

The rules are demonstrated below:

1. In naming the whole complex, the name of the cation is specified first and the anion second (simply as for sodium chloride), no matter if the cations or the anions are complex species.

2. In complex ion, the names of the ligand or ligands precede that of the central metal atom (This process is reversed for writing the formulae).

3. Ligand names usually end with ‘O’ when the ligand is negative (i.e., ‘chloro’ for Cl-, ‘cyano’ for CN-, ‘hydrido’ for H-) and unmodified when the ligand is neutral (i.e., ‘methylamine’ for MeNH2). Special ligand names are ‘ammine’ for ammonia, ‘aqua’ for water, ‘carbonyl’ for CO, and nitrosyl’ for NO.

4. A Greek prefix (i.e., mono, di, tri, tetra, penta, hexa, and so on) points out the number of each ligand (i.e., mono is generally omitted for a single ligand of a given type). When the name of the ligand itself have the terms mono, di, tri, such as triphenylphosphine, ligand name is enclosed in parentheses and its number is specified with the alternate prefixes bis, tris, tetrakis rather.

For illustration, [Ni (PPh3)2Cl2] is termed dichlorobis (triphenylphosphine) nickel (II).

5. The Roman numeral or a zero in parentheses is employed to point out the oxidation state of the central metal atom.

6. When the complex ion is negative, the name of the metal ends with ‘ate’ for illustration, cuprate, ferrate, nickelate, cobaltate and so on.

7. When more than one ligand is existed in the species, then the ligands are termed in alphabetical order regardless of the number of each. For illustration, NH3 (i.e., ammine) would be considered as ‘a’ ligand and come before Cl- (i.e., chloro).

Some additional notes:

i) Certain metals in anions have special names:

B  Borate        Au  Aurate       Ag  Argentate       Fe  Ferrate
Pb Plumbate   Sn  Stannate    Cu Cuprate          Ni Nickelate

ii) Utilization of brackets or enclosing marks:

Square brackets are utilized to surround a complex ion or neutral coordination species.

Illustrations:

[Co(en)3]Cl3               tris(ethylenediamine)cobalt(III) chloride
[Co(NH3)3(NO2)3]       triamminetrinitrocobalt (III)
K2[CoCl4]                   potassiumtetrachlorocobaltate(II)

Note: It is not essential to enclose the halogens in brackets.

 

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.
Home | Company Overview | Services | Discover Q&A | Sitemap | Contact Us | T & C | Refund Policy | Copyright Policy | Blog | Q&A | Directory

©TutorsGlobe All rights reserved 2022-2023.