The Tramadol has been a major topic on this site, some good, some bad, and seems almost everyone has an opinion about it one way or the other. My pm dr. gave me some sample of Lyrica which ( besides the weight gain ), it works very well for the nerve pain. It helps me sleep as well.
Trigonal pyramidal molecular geometry. In chemistry, a trigonal pyramid is a molecular geometry with one atom at the apex and three atoms at the corners of a trigonal base, resembling a tetrahedron (not to be confused with the tetrahedral geometry). When all three atoms at the corners are identical, the molecule belongs to point group C3v.
Trigonal pyramidal geometry is also exhibited by molecules having four atoms; one central atom and three peripheral atoms. The central atom in a trigonal pyramidal is at the apex, whereas the other three atoms are at the base, with a bond angle of about 107 degrees.n a trigonal planar, only bond-bond repulsion determines the geometry of the molecule, while in the case of trigonal pyramidal, bond-bond as well as bond-lone pair repulsion is involved in the determination of the geometry of a molecule.