The LM741 is ancient opamp there are a lot of variety of better opamps but the main idea stays the same.
The opamps differs one from other in their bandwidth , voltage , current , power consumption , number of amps in one chip , frequency response ...
National semiconductors are making grate opamps , ill show you how to use the LM324 **broken link removed** , its quad (4) operations amplifiers in one chip.
In the draw i attached i made a Voltage multiplier, it takes the voltage of Vi and multiply it in R2/R1 and invert it.
so Vo= - (Vi*R2/R10)
Remember that Vo cannot pass you VCC !!