2-coordinate: linear (L-2)

[Se{Cr(CO)₂Cp}₂]

Formula Unicode styled: 
[Se{Cr(CO)₂Cp}₂]
Compound name(s): 
bis((η⁵-cyclopentadienyl)-dicarbonyl-chromium)-selenium
Central atom: 
Selenium
Attached groups: 
Cr(CO)₂Cp (dicarbonylcyclopentadienylchromium XZ)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 6
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
Se«V6C2O-IIE8B4L0X2Z2»
[MLXZ]𝘲 class: 
[MX2Z2]
MLXZ class (ENC, equivalent neutral class): 
MX2Z2

[C(S)(N)]⊖

Formula Unicode styled: 
[C(S)(N)]⊖
Compound name(s): 
thiocyanate(1-)
Central atom: 
Carbon
Attached groups: 
S (thio⊖; X)
N (nitrido; ≡N)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OIVE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(Se)₂]

Formula Unicode styled: 
[C(Se)₂]
Compound name(s): 
carbon diselenide
Central atom: 
Carbon
Attached groups: 
Se (selenido)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (-IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2O-IVE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(S)₂]

Formula Unicode styled: 
[C(S)₂]
Compound name(s): 
carbon disulphide, carbon disulfide
Central atom: 
Carbon
Attached groups: 
S (thio)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OIVE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(S){Cr(CO)₅}]

Formula Unicode styled: 
[C(S){Cr(CO)₅}]
Compound name(s): 
Pentacarbonyl-thiocarbonyl-chromium
Central atom: 
Carbon
Attached groups: 
S (thio; ⭀S)
Cr(CO)₅ (pentacarbonylchromium)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(Ph)(N)]

Formula Unicode styled: 
[C(Ph)(N)]
Compound name(s): 
Benzonitrile
Central atom: 
Carbon
Attached groups: 
Ph (phenyl)
N (nitrido; ≡N)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OIIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(Ph)]₂

Formula Unicode styled: 
[C(Ph)]₂
Compound name(s): 
Diphenylacetylene
Central atom: 
Carbon
Attached groups: 
Ph (phenyl)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (O)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OOE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(O){W(CO)₅}]

Formula Unicode styled: 
[C(O){W(CO)₅}]
Compound name(s): 
Hexacarbonyl-tungsten
Central atom: 
Carbon
Attached groups: 
O (oxo ⭀O X₂L)
W(CO)₅ (pentacarbonyltungsten)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(O){Os(CO)₅}]²⁺

Formula Unicode styled: 
[C(O){Os(CO)₅}]²⁺
Compound name(s): 
Hexacarbonylosmium(2+)
Central atom: 
Carbon
Attached groups: 
O (oxo ⭀O X₂L)
Os group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(O){Ni(CO)₃}]

Formula Unicode styled: 
[C(O){Ni(CO)₃}]
Compound name(s): 
Tetracarbonyl-nickel
Central atom: 
Carbon
Attached groups: 
O (oxo ⭀O X₂L)
Ni(CO)₃ (tricarbonylnickel)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(O){Mo(CO)₅}]

Formula Unicode styled: 
[C(O){Mo(CO)₅}]
Compound name(s): 
Hexacarbonyl-molybdenum
Central atom: 
Carbon
Attached groups: 
O (oxo ⭀O X₂L)
Mo(CO)₅ (pentacarbonylmolybdenum)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(O){Mn(CO)₅}]⊕

Formula Unicode styled: 
[C(O){Mn(CO)₅}]⊕
Compound name(s): 
Hexacarbonyl manganese(1+)
Central atom: 
Carbon
Attached groups: 
O (oxo ⭀O X₂L)
Mn(CO)₅ (pentacarbonylmanganese)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OIIE8B4Z0X3L1»⊕
[MLXZ]𝘲 class: 
[MX3L1]+
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(O)(➝Fe group)]²⊕

Formula Unicode styled: 
[C(O)(➝Fe group)]²⊕
Compound name(s): 
Hexacarbonyl-iron(2+)
Central atom: 
Carbon
Attached groups: 
O (oxo ⭀O X₂L)
Fe group (Z type)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(O){Fe(CO)₄}]

Formula Unicode styled: 
[C(O){Fe(CO)₄}]
Compound name(s): 
Pentacarbonyl-iron
Central atom: 
Carbon
Attached groups: 
O (oxo ⭀O X₂L)
Fe(CO)₄ (tetracarbonyliron)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(O){Cr(CO)₅}]

Formula Unicode styled: 
[C(O){Cr(CO)₅}]
Compound name(s): 
Hexacarbonyl-chromium
Central atom: 
Carbon
Attached groups: 
O (oxo ⭀O X₂L)
Cr(CO)₅ (pentacarbonylchromium)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(O){V(CO)₅}]

Formula Unicode styled: 
[C(O){V(CO)₅}]
Compound name(s): 
Hexacarbonyl-vanadium
Central atom: 
Carbon
Attached groups: 
O (oxo ⭀O X₂L)
V(CO)₅ (pentacarbonylvanadium)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OIIE8B4X2L1Z1»
[MLXZ]𝘲 class: 
[MX2L1Z1]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(N)(CN)]

Formula Unicode styled: 
[C(N)(CN)]
Compound name(s): 
cyanogen
Central atom: 
Carbon
Attached groups: 
N (nitrido; ≡N)
CN (cyano-κC)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OIIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(Me)(N)]

Formula Unicode styled: 
[C(Me)(N)]
Compound name(s): 
Acetonitrile
Central atom: 
Carbon
Attached groups: 
Me (methyl)
N (nitrido; ≡N)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OIIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(Me)(O)]⊕

Formula Unicode styled: 
[C(Me)(O)]⊕
Compound name(s): 
Methyloxocarbonium(1+)
Central atom: 
Carbon
Attached groups: 
Me (methyl)
O (oxo ⭀O X₂L)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OIIIE8B4Z0X3L1»⊕
[MLXZ]𝘲 class: 
[MX3L1]+
MLXZ class (ENC, equivalent neutral class): 
MX4

[C(H)(N)]

Formula Unicode styled: 
[C(H)(N)]
Compound name(s): 
hydrogen cyanide
Central atom: 
Carbon
Attached groups: 
H (hydrido)
N (nitrido; ≡N)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 2
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
C«V4C2OIIE8B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4