Trivial:
Arsphenamine trimer
IUPAC: 2-amino-5-[bis(4-amino-3-hydroxyphenyl)triarsiran-1-yl]phenol


It is:
HOMO-9 orbitals showing arsenic πx,πz conjugation to aromatic rings


MO computations
B3LYP/6-31+G(d) using GAMESS V11(R1)


MO Display
Jmol 12.0


IUPAC name
The MarvinSketch Naming plugin was used for IUPAC naming.
Marvin version 5.3.8 2010 is from ChemAxon http://www.chemaxon.com