[Er(Cl)(OH₂)₄(Terpy-κ³N)]²⊕

Formula Unicode styled: 
[Er(Cl)(OH₂)₄(Terpy-κ³N)]²⊕
Compound name(s): 
Tetra-aqua-chloro-(2,2':6,2''-terpyridine-N,N',N'')-erbium(2+)
Central atom: 
Oxygen
Charge on formula unit (QN): 
2+
Attached groups: 
H (hydrido)
Er group (Z type)
Compound type: 
Molecular
DOI link to literature report: 
10.1071/CH9940365
Crystal data CSD link: 
yecred
Crystal data ICSD link: 
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Bond number (BN) = 𝘹 + 𝘭 + 𝘻: 
3
[MLXZ]𝘲 class: 
[MX2Z1]
MLXZ class (ENC, equivalent neutral class): 
MX2Z1
Summary of calculated classifications: 
O«V4C3O-IIE8B3L0X2Z1»
Geometry: 
3-coordinate: trigonal planar (p-block element, 0 lone pairs)
𝘥-electron configuration = 𝘮 – VN: 
𝘥-electron configuration = 𝘮 – ON: 
𝘥-electron configuration = 𝘮 – VN – 𝘲 from [MLXZ]𝘲: 
Attached atoms: 
H2Er1
Phase: 
Solid
InChIKey (see www.inchi-trust.org): 
HSOACPWQLPOCLU-UHFFFAOYSA-M
Formula Unicode generic: 
[Er(Cl)(OH₂)₄(Terpy-κ³N)]²⊕