What are the symmetry elements of C4H8 assuming CH3 is spherical?

What can you conclude about the symmetry of the C3H5+ ion as it actually exists, as regards the bond lengths and the distribution of the positive charge?

The molecule PtCl 2 - is an important square planar starting material in synthetic inorganic chemistry. Using the p orbitals of Cl as the basis find the irreducible representations of the p orbitals and indicate which orbitals could possibly overlap with any of the orbitals on Pt . Assume that the pz orbitals on Cl are orientated in the same direction as the principle rotation axis, px orbitals are pointed at the Pt , and the py orbitals are orthogonal to the px orbitals. Show the characters of each orbital and identify which orbitals on Pt would match from a pure symmetry standpoint.

4

Is the molecule CH3COCH3 polar or non polar?

List all the symmetry elements of a Cr(CO)6 molecule  and identify the symmetry point group to which it belongs.

K2

Photoelectron spectroscopy applies the principle of the photoelectric effect to study orbital energies of atoms and molecules. High-energy radiation (usually UV or X-ray) is absorbed by a sample and an electron is ejected. The orbital energy can be calculated from the known energy of the radiation and the measured energy of the electron lost. The following energy differences were determined for several electron transitions: ΔE2 →1 = 4.098 ×10−17 J ΔE3 →1 = 4.854 × 10−17 JΔE5 → 1 = 5.242 ×10−17 J  ΔE4 → 2 = 1.024 ×10−17 J Calculate the energy change and the wavelength of a photon emitted in the following transitions. Enter your answers in scientific notation. Use 6.626 ×10−34 J·s for Planck's constant. (a) Level 3 to 2: ______J ______m (b) Level 4 to 1: _____J_____ m (c) Level 5 to 4: _____J _____m

What is the geometry symmetry of dinitrogen tetroxide and C2H4

Identify the symmetry species of the Symmetry Adapted Linear Combination (SALC) ? = ?′ − ?′′ in the C2v molecule NO2, where ?′ is a 2px orbital on one O atom and ?′′ is a ???? 2px orbital on the other O atom.