All Questions
Tagged with stereochemistry inorganic-chemistry
23
questions
2
votes
1
answer
136
views
Point group of trimethyl borate $\ce{B(OCH_3)3}$
What's the point group of trimethyl borate $\ce{B(OCH_3)3}$.
The answer that my teacher gave is $D_{3h}$ but I'm struggling to see the n perpendicular $C_2$ axes and the horizontal plane of reflection....
- 21
0
votes
0
answers
112
views
How does bis(glycinato) Nickle exhibit optical isomerism?
I'm a medical practitioner but sometimes I find time to discuss few topics of chemistry with my son who has just passed out his 12th standard exams. Regarding optical isomerism I have learned that a ...
2
votes
0
answers
640
views
Is hydroxylamine monodentate or ambidentate ligand?
What is the total number of geometric isomers of the complex $\ce{[Pt(Cl)(py)(NH3)(NH2OH)]+}$?
If $\ce{NH2OH}$ acts as an ambidentate ligand, then there should be six geometric isomers. Or is it ...
- 29
-4
votes
1
answer
138
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Why total stereoisomers is 1 even if no geometrical isomers and optical-isomers are present [closed]
Let's for example take the complex structure type $\ce{MA_6}$, What will be the Total number of Stereo-isomers (=[Geometrical-isomers]+[optical-isomers]).
My effort was that There will be no G.I and ...
- 111
1
vote
0
answers
1k
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Total number of Isomers of [Co(NH3)5(NO2)](NO3)2 [closed]
I encountered this question in my country's Chemistry textbook of class 12. No solutions are published, but the answer given at the back states - "There are 10 possible isomers. (Hint: There are ...
- 19
0
votes
1
answer
598
views
Is a tetrahedral complex with two symmetric bidentate ligands optically active?
If the shape of of a complex $\ce{M(AA)2}$ (with $\ce{AA}$, a bidentate ligand) is tetrahedral, then is it optically active?
Currently I know that it is optically inactive, but I want to know the ...
- 111
3
votes
2
answers
917
views
Number of optically active isomers of [Co(NH3)2Cl2(NO)(OH)]?
My Attempt:
Since Compound is of the form M[a2b2cd]
I got three optically active isomers of the form M[(ab)(ab)(cd)] , M[(ab)(ac)(bd)] , M[(ab)(bc)(ad)]
and since NO is a bidentate ligand, total ...
-1
votes
1
answer
218
views
Optical activity of cis-trans isomers of a co-ordination compound [closed]
Why do geometrical (cis and trans) isomers of [Pt(NH3)(Br)(Cl)(py)] not show optical activity ? Thanks In Advance...
6
votes
1
answer
5k
views
Why does only the cis-isomer of potassium dioxalatodiaquochromate(III) form?
A friend of mine performed a standard synthesis reaction of potassium dioxalatodiaquochromate(III) by adding potassium dichromate to ethandioic acid dihydrate and a little water. The synthesis ...
- 173
0
votes
1
answer
5k
views
What are the isomers of a complex having a structure of M(AB)2C2?
Our instructor have us answer an isomerism problem of a crystal structure that has a form of $\ce{M(AB)2C2}$. I keep getting 9 isomers, which includes the optically inactive isomer, and my peers and I ...
2
votes
0
answers
224
views
What does the dissociative mechanism for cis/trans interconversion of [Mo(CO)4(PPh3)2] look like?
All I can find in the literature is that the cis→trans interconversion proceeds via dissociation of one of the PPh3 ligands resulting in a square-pyramidal Cs intermediate, with the remaining PPh3 in ...
- 91
6
votes
1
answer
964
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Why does the 31P{1H} NMR spectrum of cis-[Mo(CO)2(dppe)2] show two signals?
I've tried searching for literature references that explain this, finding only a single reference which refers to the two signals as originating from phosphine environments cis/trans to carbonyls, ...
- 91
8
votes
1
answer
5k
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Optical Isomerism in Coordination Compounds of type MA₂B₂(CC)
I was asked the following question:
How many optical isomers are there for $\ce{[Cr(NH3)2Cl2(en)]^+}$ ?
First of all I figured out the following four geometrical isomers of the above complex:
Out ...
- 3,071
1
vote
1
answer
2k
views
Why does dichloridobisethylenediaminecobalt(III) have only three optical isomers?
Sorry for the bad drawing and having $\ce{NH}$ instead of $\ce{NH2}$
In the first structure, the chlorine atoms are in trans position on the plane.
In the second structure, the chlorine atoms are ...
- 579
2
votes
2
answers
6k
views
What is the optical nature of the tris(ethylenediamine)cobalt(III) cation?
The molecule I've drawn has neither a plane of symmetry nor a center of symmetry, even though some books refer to this as optically inactive.
Can you please elaborate why is this so, or those books ...
- 1,316