# Which type of bonding can be found in #"As"("C"_6"H"_5)_3#?

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#p pi(As)-p pi(C)#
#d pi(As)-p pi(C)#
#d pi(As)-d pi(C)#
#p pi(As)-d pi(C)#

#p pi(As)-p pi(C)# #d pi(As)-p pi(C)# #d pi(As)-d pi(C)# #p pi(As)-d pi(C)#

##### 1 Answer

I'm assuming that you mean a monohapto complex (bound via one carbon to arsenic, not all six). That would be

Arsenic has the

Arsenic is utilizing **3**.

If we consider the **valence atomic orbital energies**, according to Miessler et al. Appendix B.9, we have:

#E_(2s)^"C" = -"19.43 eV"# #E_(2p)^"C" = -"10.66 eV"# #E_(4s)^"As" = -"18.94 eV"# #E_(4p)^"As" = -"9.17 eV"#

In the reference, apparently the

We can see that:

- The orbitals of arsenic and carbon are close in energy despite being two quantum levels
#n# apart. - Their
#p# orbitals are sufficiently close in energy (they differ by only#"1.54 eV"# , or#"148.59 kJ/mol"# ), so those can interact favorably.

As

Apparently, that would imply the

I expect the