Constructing and deciphering Molecular Orbital

ultranova3 SG

Does anyone know how to construct MO for F2O and AlCl3?
Any good reference to get all the molecules' symmetries and point groups?

I hate doing MO. Crying or Very sad
thank you

unclebutcher SG

is it spdf notation? or issit more cheem than that. Twisted Evil

ultranova3 SG

not spdf notation. spdf is for atomic orbital. interaction between 2 or more atomic orbitals will give MO.
Crying or Very sad

kenshin_himura SG

ALCL3 is considered triangular planar shape right, considering it is more fo a covalent substance since AL is grp 3 transitional element and F is very electro negative. Damn NS has made me stupid. Mr. Green

F2O, i think it is the shape will be like H2O, a triangular pyramidal with the lone pair electrons one ontop and the other at one of the corner of the triangular base. but F2O will have a smaller angle between the 2 F moleculse as the electrons are pulled more towards the 2 F atoms.

unclebutcher SG

i only know that f2o has 2 lone pairs and 2 bond pairs, which makes it bent & 105 degrees, alcl3 is trigonal planar, 120 degrees

ultranova3 SG

That is VSEPR shape. still need to find symmetry and point group. I always get dizzy doing symmetry cause I have to keep visualizing 3 D of the molecules - mirror planes, axis of rotation, point of inversion etc.
And i always get it wrong. If I cannot get the symmetry right, the whole point groups and Molecular orbitals will be wrong. Crying or Very sad