The complex (X) react with nucleophilies (R-) to give stable, neutral metal alkyl complex (Y). The product (Y) is
The 1HNMR spectrum of at -800C and at 300C are respectively
At high temperature(300C) due to fast 1,2-meta shift, mode looks like mode. Hence, two signal. At low temperature, this rate is very slow, hence four signal corresponding to 4-types of hydrogen atom. Hence, (X and Y).
The major product in the above reaction is
Bridging carbonyl is more basic than terminal hence Lewis acid attack at bridging carbonyl. Hence, correct option is (a)
The v c-o stretching frequency
In B due to presence of methyl group, it will donate more electron density to metal. Hence, more back donation therefore, less value of v c-o.
The compound has a single 'CO' stretching absorption at 1761cm-1. The IR data indicate that all C5H5 ligands are pentane to and probably in identical environment. On the basis of these data which of the following statement is true
For all Cp to similar environment all the CO should be in μ3- mode
Bond lengths and angles have been determined by gas phase electron diffraction for two similar complexes, Fe(CO)4(C2H4)(X) and fe(CO)4(C2F4), (Y)
Which of the following statement is true
As C2F4 is strong -acceptor than C2H4. Hence, there will be more backbonding in (Y). Hence, C–C bond will be larger and M–C bond will be shorter in Y.
The solved state magic angle spinning 13C NMR spectrum of Fe(CO)5 shows a single absorption at –26ºC but two singnals at –118ºC with relative intensity
At –118ºC movement of axial ligand to equatorial is slow. Hence, axial and equatorial ligands give different signal. Hence, intensity ratio will be 2 : 3
Total number of isolobal fragments are_______
Considering the quadnipolar nature of M -M bond in [Re2CI8]2-, M -M bond order in [Re2Cl4(PMe2Ph)4]+ is ___________
Let the oxidation states of two Re atoms are x and y
x + y - 4 = + 1
x + y = +5
x = +2, y = +3
Therefore, total number of d-electrons on Re2+ and Re3* ions = 5 + 4 = 9 Electronic configuration in this cluster ion is
Following the 18e- rule as a guide, determine x in the following complex.
Which of the following statement is not true
This reactions reductive elimination takes place first then followed by oxidative addition.
The above reaction is an example of
In above reaction CH2 get inserted between two metal. Hence, reaction is an example of insertion reaction.
Structures of Fe5(CO)15C and Os5(CO)16 respectively are
Correct set representing A and B respectively are
Consider the following reaction,
Consider the correct statement regarding A and B
(1) complex A is diamagnetic in nature
(2) complex B contain one ligand in η4-mode
(3) A has smaller M-C bond length than
(4) A has larger M-C bond length than
Complex A obey 18 electron, in Co(Cp)2 there is an electron in antibonding orbital which leads to increase in bond length. Hence, correct option is (2) and (3).
Grubbs catalyst used for ring closing metathesis of olefins.
The number of valence electrons provided by Co(CO)4 fragment towards cluster bonding is ___________
Each transition metal has 12 electrons associated with it that are reserved for non-framework bonding. Electron more than 12 electrons are involved in cluster bonding.
Number of valence electron in Co(CO)4 = 17
Hence, number of electrons towards cluster bonding = 17–12 = 5
In the reaction shown below
Number of CO ligand in Y is_____
The number of complexes having NO ligand in linear form are____.
have no ligand in linear form.