[P(CN)₂]⊖ | Chemdex

Formula Unicode styled:

[P(CN)₂]⊖

Compound name(s):

dicyanophosphorus(1-)

Central atom:

Phosphorus

Charge on formula unit (QN):

1–

Attached groups:

CN (cyano-κC)

Compound type:

Molecular

Notes:

Interaction of the occupied lone pair (essentially a p-orbital the phosphorus atom with the antibonding σ* orbitals of the CN bonds (back-bonding) amounts to a Z interaction. Similar situation with the As analogue.

DOI link to literature report:

10.1002/chem.201803941

Crystal data CSD link:

tihkaz

Crystal data ICSD link:

Valence Number (VN) = 𝘹 + 2𝘻 :

VN: 3

Coordination Number (CN, sum of attached group denticities):

CN: 2

Oxidation Number (ON) (Roman numerals):

ON: (I)

Electron Number (EN) = 𝘮 + 𝘹 +2𝘭:

EN: 8

Bond number (BN) = 𝘹 + 𝘭 + 𝘻:

[MLXZ]𝘲 class:

[MX₂Z₁]^-

MLXZ class (ENC, equivalent neutral class):

MX₃

Summary of calculated classifications:

P«V³C²O^IE⁸B³L⁰X²Z¹»^⊖

Geometry:

4-coordinate: tetrahedral (p-block element, 2 lone pairs)

𝘥-electron configuration = 𝘮 – VN:

𝘥-electron configuration = 𝘮 – ON:

𝘥-electron configuration = 𝘮 – VN – 𝘲 from [MLXZ]𝘲:

Attached atoms:

C₂

Phase:

Solid

InChIKey (see www.inchi-trust.org):

YZJIVJHSSUTGNL-UHFFFAOYSA-N