7-coordinate: pentagonal bipyramid (PBPY-7)

trans–[Np{(O)₂}(Py)(Acac)₂]

Formula Unicode styled: 
trans–[Np{(O)₂}(Py)(Acac)₂]
Compound name(s): 
Dioxo-bis(2,4-pentanedionato-O,O')-pyridine-neptunium(VI)
Central atom: 
Neptunium
Attached groups: 
(O)₂ (di{oxo ⭀O X₂L} trans Ⓢ)
Py (pyridine)
Acac (acetylacetonato)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 6
Oxidation Number (ON) (Roman numerals): 
ON: (VI)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 23
Summary of calculated classifications: 
Np«V6C7OVIE23B11Z0X6L5»
[MLXZ]𝘲 class: 
[MX6L5]
MLXZ class (ENC, equivalent neutral class): 
MX6L5

trans–[Np{(O)₂}(Dmso-κO)₅]²⊕

Formula Unicode styled: 
trans–[Np{(O)₂}(Dmso-κO)₅]²⊕
Compound name(s): 
pentakis(dimethylsulfoxide)-dioxo-neptunium
Central atom: 
Neptunium
Attached groups: 
(O)₂ (di{oxo ⭀O X₂L} trans Ⓢ)
Dmso (dimethylsulfoxide-κO)
Charge on central atom: 
2
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 6
Oxidation Number (ON) (Roman numerals): 
ON: (VI)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 23
Summary of calculated classifications: 
Np«V6C7OVIE23B11Z0X4L7»2⊕
[MLXZ]𝘲 class: 
[MX4L7]2+
MLXZ class (ENC, equivalent neutral class): 
MX6L5

trans–[Np{(O)₂}(Dmso-κO)₄(OH₂)]

Formula Unicode styled: 
trans–[Np{(O)₂}(Dmso-κO)₄(OH₂)]
Compound name(s): 
Aqua-tetrakis(dimethylsulfoxide-O)-dioxo-neptunium|Aqua-tetrakis(dimethylsulphoxide-O)-dioxo-neptunium
Central atom: 
Neptunium
Attached groups: 
(O)₂ (di{oxo ⭀O X₂L} trans Ⓢ)
Dmso (dimethylsulfoxide-κO)
OH₂ (aqua)
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: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 25
Summary of calculated classifications: 
Np«V4C7OIVE25B11Z0X4L7»
[MLXZ]𝘲 class: 
[MX4L7]
MLXZ class (ENC, equivalent neutral class): 
MX4L7

trans–[Np{(O)₂}(Cl){O=C(NH₂)₂}₄]

Formula Unicode styled: 
trans–[Np{(O)₂}(Cl){O=C(NH₂)₂}₄]
Compound name(s): 
Chloro-tetrakis(urea-O)-dioxo-neptunium(V)
Central atom: 
Neptunium
Attached groups: 
(O)₂ (di{oxo ⭀O X₂L} trans Ⓢ)
Cl (chloro)
O=C(NH₂)₂ (urea)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (V)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 24
Summary of calculated classifications: 
Np«V5C7OVE24B11Z0X5L6»
[MLXZ]𝘲 class: 
[MX5L6]
MLXZ class (ENC, equivalent neutral class): 
MX5L6

trans–[Np{(O)₂}(O₂CEt-κO)(OH₂)₂(Bpy)]

Formula Unicode styled: 
trans–[Np{(O)₂}(O₂CEt-κO)(OH₂)₂(Bpy)]
Compound name(s): 
Aqua(2,2'-bipyridine)dioxo(propanoato)neptunium
Central atom: 
Neptunium
Attached groups: 
(O)₂ (di{oxo ⭀O X₂L} trans Ⓢ)
O₂CEt (propanoato-κO)
OH₂ (aqua)
Bpy (bipyridine)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (V)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 24
Summary of calculated classifications: 
Np«V5C7OVE24B11Z0X5L6»
[MLXZ]𝘲 class: 
[MX5L6]
MLXZ class (ENC, equivalent neutral class): 
MX5L6

trans–[Np{(O)₂}(ONO-κO)(C₆H₄NO₂-κN,κO)₂]²⊖

Formula Unicode styled: 
trans–[Np{(O)₂}(ONO-κO)(C₆H₄NO₂-κN,κO)₂]²⊖
Compound name(s): 
Dioxo-(nitrito-O)-bis(picolinato)-neptunium
Central atom: 
Neptunium
Attached groups: 
(O)₂ (di{oxo ⭀O X₂L} trans Ⓢ)
NO₂ (nitrito-κO)
C₆H₄NO₂ (picolinato-κN,κO)
Charge on central atom: 
-2
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (V)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 24
Summary of calculated classifications: 
Np«V5C7OVE24B11Z0X7L4»2⊖
[MLXZ]𝘲 class: 
[MX7L4]2-
MLXZ class (ENC, equivalent neutral class): 
MX5L6

trans–[Np{(O)₂}(ONO-κO)(OH₂)(Terpy-κ³N)]

Formula Unicode styled: 
trans–[Np{(O)₂}(ONO-κO)(OH₂)(Terpy-κ³N)]
Compound name(s): 
Aqua-dioxo-nitrato-(2,2':6',2''-terpyridyl)-neptunium
Central atom: 
Neptunium
Attached groups: 
(O)₂ (di{oxo ⭀O X₂L} trans Ⓢ)
NO₂ (nitrito-κO)
OH₂ (aqua)
Terpy (terpyridine-κ³N)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (V)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 24
Summary of calculated classifications: 
Np«V5C7OVE24B11Z0X5L6»
[MLXZ]𝘲 class: 
[MX5L6]
MLXZ class (ENC, equivalent neutral class): 
MX5L6

trans–[Np{(O)₂}(ONO-κO)(N₂C₃H₄)₄]

Formula Unicode styled: 
trans–[Np{(O)₂}(ONO-κO)(N₂C₃H₄)₄]
Compound name(s): 
Tetrakis(1H-imidazole-kappaN-)-(nitrito-kappaO)-dioxo-neptunium
Central atom: 
Neptunium
Attached groups: 
(O)₂ (di{oxo ⭀O X₂L} trans Ⓢ)
NO₂ (nitrito-κO)
N₂C₃H₄ (Imidazole)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (V)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 24
Summary of calculated classifications: 
Np«V5C7OVE24B11Z0X5L6»
[MLXZ]𝘲 class: 
[MX5L6]
MLXZ class (ENC, equivalent neutral class): 
MX5L6

trans–[Np{(O)₂}(OH₂)₃(Bpy)]⊕

Formula Unicode styled: 
trans–[Np{(O)₂}(OH₂)₃(Bpy)]⊕
Compound name(s): 
Triaqua-(2,2'-bipyridine)-dioxo-neptunium
Central atom: 
Neptunium
Attached groups: 
(O)₂ (di{oxo ⭀O X₂L} trans Ⓢ)
OH₂ (aqua)
Bpy (bipyridine)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (V)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 24
Summary of calculated classifications: 
Np«V5C7OVE24B11Z0X4L7»⊕
[MLXZ]𝘲 class: 
[MX4L7]+
MLXZ class (ENC, equivalent neutral class): 
MX5L6

trans–[Np{(O)₂}{O=C(NH₂)₂}₅]⊕

Formula Unicode styled: 
trans–[Np{(O)₂}{O=C(NH₂)₂}₅]⊕
Compound name(s): 
Dioxoneptunium(V) pentakis(urea)
Central atom: 
Neptunium
Attached groups: 
(O)₂ (di{oxo ⭀O X₂L} trans Ⓢ)
O=C(NH₂)₂ (urea)
Charge on central atom: 
1
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (V)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 24
Summary of calculated classifications: 
Np«V5C7OVE24B11Z0X4L7»⊕
[MLXZ]𝘲 class: 
[MX4L7]+
MLXZ class (ENC, equivalent neutral class): 
MX5L6

trans–[Np{(O)₂}{O=C(NH₂)₂}₅]

Formula Unicode styled: 
trans–[Np{(O)₂}{O=C(NH₂)₂}₅]
Compound name(s): 
pentakis(Urea-O)-dioxo-neptunate
Central atom: 
Neptunium
Attached groups: 
(O)₂ (di{oxo ⭀O X₂L} trans Ⓢ)
O=C(NH₂)₂ (urea)
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: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 25
Summary of calculated classifications: 
Np«V4C7OIVE25B11Z0X4L7»
[MLXZ]𝘲 class: 
[MX4L7]
MLXZ class (ENC, equivalent neutral class): 
MX4L7

trans–[Np{(O)₂}(NCS-κN)(OH₂)₂(Bpy)]

Formula Unicode styled: 
trans–[Np{(O)₂}(NCS-κN)(OH₂)₂(Bpy)]
Compound name(s): 
(2,2'-bipyridyl)-diaqua-dioxo-isothiocyanato-neptunium
Central atom: 
Neptunium
Attached groups: 
(O)₂ (di{oxo ⭀O X₂L} trans Ⓢ)
NCS (isothiocyanato-κN)
OH₂ (aqua)
Bpy (bipyridine)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (V)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 24
Summary of calculated classifications: 
Np«V5C7OVE24B11Z0X5L6»
[MLXZ]𝘲 class: 
[MX5L6]
MLXZ class (ENC, equivalent neutral class): 
MX5L6

trans–[Np{(O)₂}(NCS-κN){O=C(NH₂)₂}₄]

Formula Unicode styled: 
trans–[Np{(O)₂}(NCS-κN){O=C(NH₂)₂}₄]
Compound name(s): 
Isothiocyanato-dioxo-tetrakis(urea-O)-neptunium
Central atom: 
Neptunium
Attached groups: 
(O)₂ (di{oxo ⭀O X₂L} trans Ⓢ)
NCS (isothiocyanato-κN)
O=C(NH₂)₂ (urea)
Charge on central atom: 
0
Compound type: 
Molecular
Valence Number (VN) = 𝘹 + 2𝘻 : 
VN: 5
Oxidation Number (ON) (Roman numerals): 
ON: (V)
Coordination Number (CN, sum of attached group denticities): 
CN: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 24
Summary of calculated classifications: 
Np«V5C7OVE24B11Z0X5L6»
[MLXZ]𝘲 class: 
[MX5L6]
MLXZ class (ENC, equivalent neutral class): 
MX5L6

[Np(Cl)₄(Thf)₃]

Formula Unicode styled: 
[Np(Cl)₄(Thf)₃]
Compound name(s): 
tetrachloro-tris(tetrahydrofuran)-neptunium
Central atom: 
Neptunium
Attached groups: 
Cl (chloro)
Thf (tetrahydrofuran)
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: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 17
Summary of calculated classifications: 
Np«V4C7OIVE17B7Z0X4L3»
[MLXZ]𝘲 class: 
[MX4L3]
MLXZ class (ENC, equivalent neutral class): 
MX4L3

[Np(Cl)₃(Py)₄]

Formula Unicode styled: 
[Np(Cl)₃(Py)₄]
Compound name(s): 
trichloro-tetrakis(pyridine)-neptunium
Central atom: 
Neptunium
Attached groups: 
Cl (chloro)
Py (pyridine)
Charge on central atom: 
0
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: 7
Electron Number (EN) = 𝘮 + 𝘹 +2𝘭: 
EN: 18
Summary of calculated classifications: 
Np«V3C7OIIIE18B7Z0X3L4»
[MLXZ]𝘲 class: 
[MX3L4]
MLXZ class (ENC, equivalent neutral class): 
MX3L4