Matrix t*K(1) in Subspace 101 with Dimension 8

(K(1) is the first-order Grosse operator)

(-I/2)*Sqrt[3]*t ((3*I)/4)*(I + Sqrt[3])*t 0 U/2 (Sqrt[3]*U)/2 (Sqrt[3]*t)/2 ((3*I - Sqrt[3])*t)/4 0
(3*(1 + I*Sqrt[3])*t)/4 (I/2)*Sqrt[3]*t (-U - (3*I)*Sqrt[3]*U)/4 0 0 (3*(-I + Sqrt[3])*t)/4 ((3*I)/2)*t ((-3*I + Sqrt[3])*U)/4
0 (U - (3*I)*Sqrt[3]*U)/4 (-I/2)*Sqrt[3]*t (-3*t)/2 (Sqrt[3]*t)/2 0 -((3*I + Sqrt[3])*U)/4 -(Sqrt[3]*t)/2
-U/2 0 (3*t)/2 (I/2)*Sqrt[3]*t ((-3*I)/2)*t ((-3*I)/2)*U 0 ((3*I)/2)*t
-(Sqrt[3]*U)/2 0 -(Sqrt[3]*t)/2 ((-3*I)/2)*t (-I/2)*Sqrt[3]*t (I/2)*Sqrt[3]*U 0 (-I/2)*Sqrt[3]*t
-(Sqrt[3]*t)/2 (-3*(I + Sqrt[3])*t)/4 0 ((-3*I)/2)*U (I/2)*Sqrt[3]*U (-I/2)*Sqrt[3]*t (-I/4)*(-3*I + Sqrt[3])*t 0
((3*I + Sqrt[3])*t)/4 ((3*I)/2)*t ((-3*I + Sqrt[3])*U)/4 0 0 ((3 - I*Sqrt[3])*t)/4 (-I/2)*Sqrt[3]*t (-I/4)*(-3*I + Sqrt[3])*U
0 -((3*I + Sqrt[3])*U)/4 (Sqrt[3]*t)/2 ((3*I)/2)*t (-I/2)*Sqrt[3]*t 0 ((3 - I*Sqrt[3])*U)/4 (-I/2)*Sqrt[3]*t