Multiple feedback low-pass filter design
I am afraid that your transfer function is not correct. Cancel the wp² and the wp in the denominator - and the results will be OK. Your error can be verified very easily: All three expressions in the denominator must have the unit "1" - and this is not the case with your function.

The correct equations are like this:

1/wp²=R2R3C1C2;

1/(wp*Qp)=(R2+R3+R2R3/R1)C1.

Update: 

The above two equations result from a comparison between the (corrected !) transfer function of YOUR specific circuit and the general second-order transfer function:

H(s)=Ao/[1+s/(wpQp)+s²/wp²]

For Chebyshev (3 dB ripple) the pole data are: Qp=1.30656 and the normalized pole frequency is wp/wo=0.8409 (wo=cut-off).