[Tc(TcO₄-κO){(O)₃}]

Formula Unicode styled: 
[Tc(TcO₄-κO){(O)₃}]
Compound name(s): 
heptaoxo-technetium|ditechnetium heptoxide
Notes: 

The three oxo groups as a tetrahedral set are classified as X6L2 (neutral representation, 8 electrons, σ and π-bonding) for the d-block metal rather than X6 (three X2 groups). The three oxygen atoms possess 12 valence orbitals (18 electrons) and may be treated as sp hybridised. Three (occupied) point away from the metal and are non-bonding (6 electrons). One of the π-orbitals is represented as A2, has no corresponding combination on the metal (2 electrons), and so non-bonding. The remaining ten electrons constitute the X6L2 class. Overall there are nine bonding orbitals (3A1 and 3E) in point group (C3v) connecting the three oxo groups set and one L-type ligand with the metal. This is very similar to the situation for imino complexes [M(X)(NX)3]. See:

Central atom: 
Compound type: 
Valence Number (VN): 
Coordination Number (CN): 
Oxidation Number (ON) (Roman numerals): 
Electron Number (EN): 
Bond number (BN): 
9
MLXZQ± class: 
[MX7L2]
MLXZ class: 
MX7L2
CLOVEBXZ: 
Tc«V7C4OVIIE18B9Z0X7L2»
Charge on formula unit (QN): 
0
Charge on central atom: 
0
Formula Unicode generic: 
[Tc(TcO₄-κO){(O)₃}]
Chemdex ID: 
Tc24534
Attached atoms: 
O4
Phase: 
InChIKey: 
CGTJOTIUFFHNRD-UHFFFAOYSA-N
d-electron configuration via MVQ: 
d0
d-electron configuration via ON: 
d0