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Use the EAN rule to predict the molecula...

Use the `EAN` rule to predict the molecular formula for the simple carbonyls of (a) `Cr(Z = 24)`
(b) `Fe (Z =26)` and (c ) `Ni (Z =28)` (Assume that the oxidation state of the metals in the these carbonyls is zero) .

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To predict the molecular formulas for the simple carbonyls of chromium, iron, and nickel using the Effective Atomic Number (EAN) rule, we will follow these steps: ### Step 1: Understand the EAN Rule The EAN rule states that the stability of a coordination compound can be predicted by calculating the Effective Atomic Number (EAN) of the central metal atom. The formula for EAN is: \[ \text{EAN} = Z - \text{Oxidation State} + \text{Number of Electrons Gained from Ligands} \] Where: ...
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The IUPAC name of [Co(H_2NCH_2CH_2NH_2)_2 (NO_2)NO_5 is bis(enthane-1,2-diamine) dinitrito-N-cobalt(III) nitrate.It follows the following rules that. (a)Cation is named first followed by anion. (b) Ligands are named in an alphabetical order before the name of the central atom/ion. ( c)Name of anionic ligands end in "o" (ex.chlorido) those of neutral (and if cation) ligands are the same except aqua for H_2O , ammine for NH_3 etc. (d)Prefixes mono,di,tri,etc.are used to indicate the number of individual ligand.When the name of the ligands include a numerical prefix, then terms bis, tris, tetrakis are used. (e)Oxidation state of the metal is indicated by Roman numeral in parenthesis. (f) For cationic and neutral complexes, the metal is named same as the element and for anionic complex, the name of metal ends with suffix-ate.For some metals, the Latin names are used in the complex anions , e.g., ferrate for Fe, argentate for silver etc. The IUPAC name of Fe_4[Fe(CN)_6]_3 is :

The IUPAC name of [Co(H_2NCH_2CH_2NH_2)_2 (NO_2)NO_5 is bis(enthane-1,2-diamine) dinitrito-N-cobalt(III) nitrate.It follows the following rules that. (a)Cation is named first followed by anion. (b) Ligands are named in an alphabetical order before the name of the central atom/ion. ( c)Name of anionic ligands end in "o" (ex.chlorido) those of neutral (and if cation) ligands are the same except aqua for H_2O , ammine for NH_3 etc. (d)Prefixes mono,di,tri,etc.are used to indicate the number of individual ligand.When the name of the ligands include a numerical prefix, then terms bis, tris, tetrakis are used. (e)Oxidation state of the metal is indicated by Roman numeral in parenthesis. (f) For cationic and neutral complexes, the metal is named same as the element and for anionic complex, the name of metal ends with suffix-ate.For some metals, the Latin names are used in the complex anions , e.g., ferrate for Fe, argentate for silver etc. The correct IUPAC name of the coordination compound [Pt(NH_3)_2Cl(NH_2CH_3)] is :

(a) Why do transition elements show variable oxidation states? (i) Name the element showing maximum number of oxidation states among the first series of transition metals from Sc (Z = 21) to Zn (Z = 30). (ii) Name the element which shows only + 3 oxidation state. (b) What is lanthanoid contraction? Name an important alloy which contains some of the lanthanoid metals.

Borane is an electron deficient compound. It has only six valence eletons, so the boron atom lacks an octet. Acquiring an octet is the driving force for the unusual bonding structure found in boron compounds. As an electron deficient compound, BH_(3) is a strong electrophile, capable of adding to a double bond. This hydroboration of double bond is though to oC Cur in one step, with the boron atom adding to the less highly substituted end of the double bond. In transition state, the boron atom withdraws electrons from the pi bond and the carbon at theother end of the double bond acquires a partial positive charge. This positive charge is more stable on the more highly subsituted carbon atom. The second step is the oxidation of boron atom, removing it from carbon and replacing it with hydroxyl group by using H_(2)O_(2)//OH^(bar(..)) . The simultaneous addition of boron and hydrogen to the double bond leads to a syn addition. Oxidation of the trialkyl borane replaces boron with a hydroxyl group in the same stereochemical position. Thus, hydroboration of alkenen is an example of steropecific reaction, in which different steroisomers of starting compounds react to give different steroisomers of the product. CH_(3)-underset(CH_(3))underset(|)overset(CH_(3))overset(|)C-CH=CH_(2) underset((ii)H_(2)O_(2)//OH^(bar(..)))overset((i)BH_(3)//THF)rarrZ . Z is :

CENGAGE CHEMISTRY ENGLISH-COORDINATION COMPOUNDS-Solved Examples
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  2. Calculate the EAN of the central metal in the following complex (a) ...

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  3. Use the EAN rule to predict the molecular formula for the simple carbo...

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  4. A compound with the empirical formula Co(NH(3))(5)SO(4)Br exists in tw...

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  5. Two complexes with empirical formula Co(NH(3))(3)(H(2)O)(2) Br(2)Cl ex...

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  6. Two complexes with empirical formula Co(NH(3))(3)(H(2)O)(2) Br(2)Cl ex...

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  7. How many isomers are possible for the complex ion [Cr(NH(3))(OH)(2)Cl(...

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  8. For the square planar complex [Pt(NH(3))(4)(NH(2)OH)py(No(2))]^(o+) ho...

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  9. Give the total number of geometrical and optical isomers give by [Co...

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  10. How many geometrical isomers are there for [Co(NH(3))(2) Cl(4)]^(-) (o...

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  11. A complex of the type [M(A A)(2)X(2)]^(n+) is known to be optically ac...

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  12. The formula Co(NH(3))(4) CO(3) Br represents three isomers Draw the...

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  13. On the basic VBT answer the following questions for the 4-coordinated ...

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  14. Explain why a knowledge of magnetic suceptilbility of a complex is oft...

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  15. Magetic moment of [CoI(4)]^(2-) is 3.8BM Using valence bond approach p...

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  16. A complex of a certain metal ion has a magnetic moment of 4.90BM Anoth...

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  17. Find out the number of unpaired electrons in strong and weak octahedra...

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  18. Distinguish between the possibillities in complex ions of Delta =0 and...

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  19. Determine the crystal field stabilisation energy of a d^(6) complex ha...

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