C5H5

When the cyclic component is benzene or naphthalene, the -ic acid or -oic acid of the acid corresponding to the acyl group is changed to -ophenone or -onaphthone, respectively. For example, C5H5—CO—CH2CH2CH3 can be named either butyrophenone (or butanophenone) or phenyl propyl ketone. 

C5H5)2Ti( -ClC3H,0)3 [123094)6-7] orange-yeUow 145-147 thermally stable hydroly2ed only when heating with concentrated NaOH... 

C5H5)2Ti(OOCC3H3)3 [511784)0-8] ben2oyl yeUow 188 reacts with aqueous alkaU to give ben2oic acid... 

The sandwich compounds, feiTocene and nickelocene, FefCg 115)2 and Ni(C5H5)2, so called because die metal atom is sandwiched between the organic radicals, C5H5, have also been used to prepare iron and nickel deposits. 

Fig. 1.13. Energy level diagrams for C3H3 and C5H5 systems.

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