4d , 5d series element, Chemistry

 

Unlike components of the 3d series, 4d and 5d elements have little simple aqueous cationic chemistry. The main exceptions are La3+ and Y3+, and Ag+, which builds some soluble salts (AgF, AgNO3). The aqua Ag+ ion produces strong class b complexing behavior, with an affinity for ligands such as I-, NH3 and CN- comparable with Cd2+ in the next group. Some other aqua cations may be build, but they are extensively polymerized and hydrolyzed (e.g. Zr4+, Hf4+), strongly reducing (e.g. Mo3+), or have a very big affinity for other ligands (e.g. Pd2+) and are difficult to ready in uncomplexed form.

 

Table  A selection of oxides and halides of elements from the 4d and 5d series. M describes either of the two elements from the corresponding group, and X any halogen unless exceptions are specified.

 


 

1401_Untitled.png

 

 

Numerous complexes are building, the most stable with early groups being ones with oxygen and F- donor ligands, and in later groups ones with softer ligands such as nitrogen donors and heavy halides. This trend is same to that appear in the 3d series but is more marked. The most commonly encountered solution substance for later elements are chloride complexes such as [PdCl4]2-, [PtCl6]4- and [AuCl4]-.

 

Posted Date: 7/23/2012 7:49:36 AM | Location : United States







Related Discussions:- 4d , 5d series element, Assignment Help, Ask Question on 4d , 5d series element, Get Answer, Expert's Help, 4d , 5d series element Discussions

Write discussion on 4d , 5d series element
Your posts are moderated
Related Questions
what effect of two oriantation gps in the same aromatic ring?

Q. Define Food spoilage? Food spoilage is a major concern of all people. Spoilage by growth of bacteria, yeasts and moulds limits the time that the food can be stored and still

can you give examples of semi-synthetic polymer

what is the volume in cubic of a brain that is 4.77-10 to the -3 power.

General principles for naming organic compounds In the general system, all the isomeric alkanes (having similar molecular formula) have the the same parent name. The names of

How can we control the product yield of the Benkeser reaction?

When 100 ml of M/10 H2SO4 is mixed with 500 ml of My/10 NaOH then nature of resulting solution and normality of excess reactant left is

Halides and halide complexes Almost all elements create thermodynamically stable halides. The general stability sequence is F>Cl>Br>I, that in covalent compounds follows the su

principle of qualitative analysis of funcional group

Interfacial Defects  Grain boundaries are interfaces where crystals of dissimilar orientations meet. A grain boundary is a single-phase interface, with crystals on each n every