5-coordinate: trigonal bipyramidal (p-block element, 1 lone pair)

[Se(Cl)₂(C₂H₄)]₂

Formula Unicode styled: 
[Se(Cl)₂(C₂H₄)]₂
Compound name(s): 
1,4-Diselenane tetrachloride
Central atom: 
Selenium
Attached groups: 
Cl (chloro)
C₂H₄ (ethene X₂)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (IV)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Se«V4C4OIVE10B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[Se(CN)₂(F)₂]

Formula Unicode styled: 
[Se(CN)₂(F)₂]
Compound name(s): 
dicyano-difluoro-selenium
Central atom: 
Selenium
Attached groups: 
CN (cyano-κC)
F (fluoro)
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: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Se«V4C4OIVE10B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

catena–1D-[Sn(μ₂-SO₄){Sc(NH₂)₂}₂]

Formula Unicode styled: 
catena–1D-[Sn(μ₂-SO₄){Sc(NH₂)₂}₂]
Compound name(s): 
catena-[(μ₂-Sulfato-O,O')-bis(thiourea)-tin]
Central atom: 
Sulfur
Attached groups: 
O (oxo Z)
OR (oxyl)
OR (oxyl)
Charge on central atom: 
0
Compound type: 
Catena-1D
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 6
Oxidation Number (ON) (Roman numerals): 
ON: (VI)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 8
Summary of calculated classifications: 
S«V6C4OVIE8B4L0X2Z2»
[MLXZ]𝘲 class: 
[MX2Z2]
MLXZ class (ENC, equivalent neutral class): 
MX2Z2

catena–1D-[Tl(Me)₂(μ₂-TePh)]

Formula Unicode styled: 
catena–1D-[Tl(Me)₂(μ₂-TePh)]
Compound name(s): 
catena-[μ₂-Phenyltellurido)-dimethyl-thallium]
Central atom: 
Tellurium
Attached groups: 
Ph (phenyl)
Tl group (X type)
Charge on central atom: 
-1
Compound type: 
Catena-1D
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (-II)
Coordination Number (CN, sum of attached group denticities): 
CN: 3
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Te«V2C3O-IIE10B3Z0L0X3»⊖
[MLXZ]𝘲 class: 
[MX3]-
MLXZ class (ENC, equivalent neutral class): 
MX2L1

[Pb(SePh)₂(Py)₂]

Formula Unicode styled: 
[Pb(SePh)₂(Py)₂]
Compound name(s): 
bis(benzeneselenolato)-bis(pyridine)-lead
Central atom: 
Lead
Attached groups: 
SePh (phenylselenyl)
Py (pyridine)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Pb«V2C4OIIE10B4Z0X2L2»
[MLXZ]𝘲 class: 
[MX2L2]
MLXZ class (ENC, equivalent neutral class): 
MX2L2

[Tl(μ₄-O₂N)]

Formula Unicode styled: 
[Tl(μ₄-O₂N)]
Compound name(s): 
thallium nitrite
mononitrito-thallium
thallous nitrite
Central atom: 
Thallium
Attached groups: 
NO₂ (μ₄-nitrito-κ³O)
Charge on central atom: 
Compound type: 
Lattice
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 1
Oxidation Number (ON) (Roman numerals): 
ON: (I)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 0
Summary of calculated classifications: 
Tl«V1C4OI»
[MLXZ]𝘲 class: 
MLXZ class (ENC, equivalent neutral class): 

[Sn{B(Pz)₄-κ²N}₂]

Formula Unicode styled: 
[Sn{B(Pz)₄-κ²N}₂]
Compound name(s): 
bis(tetrakis(1-Pyrazolyl)borato)-tin
Central atom: 
Tin
Attached groups: 
B(Pz)₄ (tetra(pyrazolyl)borato-κ²N)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Sn«V2C4OIIE10B4Z0X2L2»
[MLXZ]𝘲 class: 
[MX2L2]
MLXZ class (ENC, equivalent neutral class): 
MX2L2

[Sn(H₂Edta-κ²N,κ²O)]

Formula Unicode styled: 
[Sn(H₂Edta-κ²N,κ²O)]
Compound name(s): 
Dihydrogen ethylenediaminetetra-acetato-tin
Central atom: 
Tin
Attached groups: 
Edta-H₂ (ethylenediamine-diacetato-diacetic acid-κ²N,κ²O)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Sn«V2C4OIIE10B4Z0X2L2»
[MLXZ]𝘲 class: 
[MX2L2]
MLXZ class (ENC, equivalent neutral class): 
MX2L2

[Sb(Cl)(OPrⁱ)(μ₂-OPrⁱ)]₂

Formula Unicode styled: 
[Sb(Cl)(OPrⁱ)(μ₂-OPrⁱ)]₂
Compound name(s): 
bis-[η²-Isopropoxo)-chloro-(isopropoxy)-antimony]
Central atom: 
Antimony
Attached groups: 
Cl (chloro)
OPrⁱ (isopropoxy)
OPrⁱ (μ₂-isopropoxy)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Sb«V3C4OIIIE10B4Z0X3L1»
[MLXZ]𝘲 class: 
[MX3L1]
MLXZ class (ENC, equivalent neutral class): 
MX3L1

[S(F)₄]

Formula Unicode styled: 
[S(F)₄]
Compound name(s): 
tetrafluoro-sulfur, tetafluoro-sulphur, sulphur tetraafluoride
Central atom: 
Sulfur
Attached groups: 
F (fluoro)
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: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
S«V4C4OIVE10B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[S(C₆H₄Cl)₂(Cl)₂]

Formula Unicode styled: 
[S(C₆H₄Cl)₂(Cl)₂]
Compound name(s): 
bis(p-chlorophenyl)-dichloro-sulfur
Central atom: 
Sulfur
Attached groups: 
C₆H₄Cl (p-chlorophenyl)
Cl (chloro)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (O)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
S«V4C4OOE10B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[Al(C₃H₅-κC)₂(Thf)₃]⊕

Formula Unicode styled: 
[Al(C₃H₅-κC)₂(Thf)₃]⊕
Compound name(s): 
Diallyl-(tris(tetrahydrofuran))-aluminium(1+)
Central atom: 
Aluminium
Attached groups: 
C₃H₅ (allyl-κC)
Thf (tetrahydrofuran)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 3
Oxidation Number (ON) (Roman numerals): 
ON: (III)
Coordination Number (CN, sum of attached group denticities): 
CN: 5
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Al«V3C5OIIIE10B5Z0X2L3»⊕
[MLXZ]𝘲 class: 
[MX2L3]+
MLXZ class (ENC, equivalent neutral class): 
MX3L2

[Te(I)(Ph)]₄

Formula Unicode styled: 
[Te(I)(Ph)]₄
Compound name(s): 
Tetraiodo-tetraphenyl-tetra-tellurium
Central atom: 
Tellurium
Attached groups: 
I (iodo)
Ph (phenyl)
Charge on central atom: 
0
Compound type: 
Oligomer
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 4
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Te«V4C4OIIE10B4Z0L0X4»
[MLXZ]𝘲 class: 
[MX4]
MLXZ class (ENC, equivalent neutral class): 
MX4

[Sn(Ox)₂]²⊖

Formula Unicode styled: 
[Sn(Ox)₂]²⊖
Compound name(s): 
bis(oxalato)-tin(2-)
Central atom: 
Tin
Attached groups: 
Ox (oxalato)
Charge on central atom: 
-2
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Sn«V2C4OIIE10B4Z0L0X4»2⊖
[MLXZ]𝘲 class: 
[MX4]2-
MLXZ class (ENC, equivalent neutral class): 
MX2L2

[Sn(Cl)₂(Phen)]

Formula Unicode styled: 
[Sn(Cl)₂(Phen)]
Compound name(s): 
Dichloro-(1,10-phenanthroline-N,N')-tin
Central atom: 
Tin
Attached groups: 
Cl (chloro)
Phen (phenanthroline)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Sn«V2C4OIIE10B4Z0X2L2»
[MLXZ]𝘲 class: 
[MX2L2]
MLXZ class (ENC, equivalent neutral class): 
MX2L2

[Sn(Cl)₂(OPPh₃)₂]

Formula Unicode styled: 
[Sn(Cl)₂(OPPh₃)₂]
Compound name(s): 
Dichloro-bis(triphenylphosphineoxide)-tin
Central atom: 
Tin
Attached groups: 
Cl (chloro)
OPPh₃ (triphenylphosphane oxide)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Sn«V2C4OIIE10B4Z0X2L2»
[MLXZ]𝘲 class: 
[MX2L2]
MLXZ class (ENC, equivalent neutral class): 
MX2L2

[Sn(Cl)₂(Dmso-κO)₂]

Formula Unicode styled: 
[Sn(Cl)₂(Dmso-κO)₂]
Compound name(s): 
Dichlorido-bis(dimethyl sulfoxide-kappaO)-tin
Central atom: 
Tin
Attached groups: 
Cl (chloro)
Dmso (dimethylsulfoxide-κO)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Sn«V2C4OIIE10B4Z0X2L2»
[MLXZ]𝘲 class: 
[MX2L2]
MLXZ class (ENC, equivalent neutral class): 
MX2L2

[Sn(Cl)₂(Bpy)]

Formula Unicode styled: 
[Sn(Cl)₂(Bpy)]
Compound name(s): 
Dichloro-(2,2'-bipyridyl-N,N')-tin
Central atom: 
Tin
Attached groups: 
Cl (chloro)
Bpy (bipyridine)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Sn«V2C4OIIE10B4Z0X2L2»
[MLXZ]𝘲 class: 
[MX2L2]
MLXZ class (ENC, equivalent neutral class): 
MX2L2

[Sn(Br)(Cl)(Thf)₂]

Formula Unicode styled: 
[Sn(Br)(Cl)(Thf)₂]
Compound name(s): 
Bromo-chloro-bis(tetrahydrofuran)-tin
Central atom: 
Tin
Attached groups: 
Br (bromo)
Cl (chloro)
Thf (tetrahydrofuran)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Sn«V2C4OIIE10B4Z0X2L2»
[MLXZ]𝘲 class: 
[MX2L2]
MLXZ class (ENC, equivalent neutral class): 
MX2L2

[Sn(Br)₄]²⊖

Formula Unicode styled: 
[Sn(Br)₄]²⊖
Compound name(s): 
tetrabromo-tin(2-)
Central atom: 
Tin
Attached groups: 
Br (bromo)
Charge on central atom: 
-2
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 2
Oxidation Number (ON) (Roman numerals): 
ON: (II)
Coordination Number (CN, sum of attached group denticities): 
CN: 4
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 10
Summary of calculated classifications: 
Sn«V2C4OIIE10B4Z0L0X4»2⊖
[MLXZ]𝘲 class: 
[MX4]2-
MLXZ class (ENC, equivalent neutral class): 
MX2L2