Subvolume A: Inorganic Molecules 
Element System Ag- 
No  Hill Formula  Structure Formula  Name  
001  AgArBr  Ar  AgBr  Argon  silver bromide (1/1)  
002  AgArCl  Ar  AgCl  Argon  silver chloride (1/1)  
003  AgArF  Ar  AgF  Argon  silver fluoride (1/1)  
004  AgClKr  AgCl  Kr  Silver chloride  krypton (1/1)  
005  AgFKr  AgF  Kr  Silver fluoride  krypton (1/1)  
006  AgHO  Ag  O  H  Silver hydroxide  

Element System Al- 
No Hill Formula Structure Formula Name 
007 AlBr3 AlBr3 Aluminum tribromide 008 AlCl3 AlCl3 Aluminum trichloride 009 AlHS 
Aluminum hydrogen sulfide  
Al H 010 AlI3 AlI3 Aluminum triiodide 011 Al2Br6 Br Di--bromo-bis(dibromoaluminum) 
012 Al2Cl6 Cl Di--chloro-bis(dichloroaluminum) 



No Hill Formula Structure Formula Name 
013  ArAuBr  Ar  AuBr  Argon  gold monobromide (1/1)  
014  ArAuCl  Ar  AuCl  Argon  gold monochloride (1/1)  
015  ArAuF  Ar  AuF  Argon  gold monofluoride (1/1)  
016  ArBrCl  Ar  BrCl  Argon  bromine chloride (1/1)  
017  ArBrCu  Ar  CuBr  Argon  copper monobromide (1/1)  
018  ArClCu  Ar  CuCl  Argon  copper monochloride (1/1)  
019  ArClH  Ar  HCl  Argon  hydrogen chloride (1/1)  
020  ArClHNe  Ar  HCl  Ne  Argon  hydrogen chloride  neon (1/1/1)  
021  ArClH2 +  H2Cl+  Ar  Chloronium  argon (1/1)  
022  ArClI  Ar  ICl  Argon  iodine chloride (1/1)  
023  ArClNa  Ar  NaCl  Argon  sodium chloride (1/1)  
024  ArCuF  Ar  CuF  Argon  copper monofluoride (1/1)  
025  ArHI  Ar  HI  Argon  hydrogen iodide (1/1)  
026  ArHN2 +  HN=N+  Ar  Diazenylium  argon (1/1)  
027  ArHOSi+  HOSi+  Ar  Hydroxysilyliumylidene  argon (1/1)  
028  ArHS  Ar  SH  Argon  monohydrogen monosulfide (1/1)  
029  ArH2N+  NH2 +  Ar  Aminylium  argon (1/1)  
030  ArH3N  ND3  Ar  Ammonia  argon (1/1)  
031  ArH3N+  NH3 +  Ar  Ammoniumyl  argon (1/1)  
032  ArH4N+  NH4 +  Ar  Ammonium  argon (1/1)  
033  ArNO2  Ar  NO2  Argon  nitrogen dioxide (1/1)  
034  ArN2NeO  Ar  N2O  Ne  Argon  dinitrogen monoxide  neon (1/1/1)  
035  ArN2O  Ar  N2O  Argon  dinitrogen monoxide (1/1)  
036  ArN4 +  N=N  Ar+  N=N  Argon (1+) ion  dinitrogen (1/2)  
007  ArNe2  Ar  2Ne  Argon  neon (1/2)  

No  Hill Formula  Structure Formula  Name  
038  ArNe3  Ar  3Ne  Argon  neon (1/3)  
039  ArO2S  Ar  SO2  Argon  sulfur dioxide (1/1)  
040  Ar2BrH  HBr  2Ar  Hydrogen bromide  argon (1/2)  
041  Ar2H2O  H2O  2Ar  Water  argon (1/2)  
042  Ar2H3N  NH3  2Ar  Ammonia  argon (1/2)  
043  Ar2N2O  N2O  2Ar  Dinitrogen monoxide  argon (1/2)  
044  Ar2Ne  Ne  2Ar  Neon  argon (1/2)  
045  Ar2Ne2  2Ar  2Ne  Argon  neon (2/2)  
046  Ar3H2O  H2O  3Ar  Water  argon (1/3)  
047  Ar3H2S  H2S  3Ar  Hydrogen sulfide  argon (1/3)  
048  Ar3H3N  NH3  3Ar  Ammonia  argon (1/3)  
049  Ar3Ne  Ne  3Ar  Neon  argon (1/3)  

Element System As- 
No  Hill Formula  Structure Formula  Name  
050  AsF3  AsF3  Arsenic trifluoride  
051  AsH2  AsH2  Arsenic dihydride  
052  AsH3  AsD3  Arsine-d3  

Element System Au- 
No Hill Formula Structure Formula Name 
053 AuClKr AuCl  Kr Gold monochloride  krypton (1/1) 
054 AuF3 AuF3 Gold trifluoride 
055 Au2Cl6 Cl Di--chloro-bis[dichlorogold(III)]


056 Au2F6 F 

F 
F Di--fluoro-bis[difluorogold(III)] Au Au 
F 


FF 
Element System B - 
No Hill Formula Structure Formula Name 
057 058 059 060 061 062 
063 064 065 066 
067 068 
069 070 071 BBrH+ BBrO BBr3 BClO BClS BCsO2 
BFS BF3O2S BF4H BGaH6 
BHO BO2Rb 
BS2 B2Br4 
B3GaH10 HB+Br BrB=O BBr3 ClB=O ClB=S 
OBO Cs F-B=S SO2  BF3 HF  BF3 H

H 


H 
Ga B 
H 


H
H HB=O 
OBO Rb 
S=B=S 
B2Br4 
HH
H
Ga 
H
H 
BB
H
H 
BH
HH

Bromoborane(2) (1+) ion 
Bromooxoborane 
Boron tribromide 
Chlorooxoborane 
Boron chloride sulfide 
Cesium metaborate 

Boron fluoride sulfide 
Sulfur dioxide  trifluoroborane (1/1) 
Hydrogen fluoride  trifluoroborane (1/1) 
Dihydrido[tetrahydroborato-.H,.H]gallium

Boron hydride oxide 
Rubidium metaborate 

Boron disulfide  
Diboron tetrabromide 
2-Galla-arachno-tetraborane(10) 

072 B4F3H8P 
073  B4H10  
074  B4H16U  
075  B4H16Zr  
076  B9H9S  

HH 1-(Trifluorophosphine)-arachno-tetraborane(10) H
B F H
BBP 
F 



HBH
HH



B4H10 
H 

B 
H HH HB
H 

U 

HH H 

B 

H 
H 

B H H
H HB
H 
Zr 

HH H B 
H 

S 
B 
B 
B 







F 
Arachno-Tetraborane(10) 
Tetrakis(tetrahydroborato-.H,.H'',.H'') uranium(IV)  H H H
BH 



H

H

Tetrakis(tetrahydroborato-.H,.H'',.H'') zirconium(IV) H H H 
BH H 
H 

1-Thia-closo-decaborane(9) 
Element System Ba- 
No Hill Formula Structure Formula Name 
077 BaBr2 BaBr2 Barium dibromide 
Element System Be- 
No  Hill Formula  Structure Formula  Name  
078  BeBr2  BeBr2  Beryllium dibromide  
079  BeCl2  BeCl2  Beryllium dichloride  

080 BeH2 BeH2 Beryllium dihydride 
081 Be2Cl4 Cl Di--chloro-bis[chloroberyllium(II)] Cl BeCl

Element System Bi- 
No  Hill Formula  Structure Formula  Name  
082  BiBr3  BiBr3  Bismuth tribromide  
083  BiF3  BiF3  Bismuth trifluoride  
084  BiH3  BiH3  Bismuthine  
085  BiI3  BiI3  Bismuth triiodide  

Element System Br- 
No Hill Formula Structure Formula Name 
086 BrClH2O BrCl  H2O Bromine chloride  water (1/1) 087 BrClH2S BrCl  H2S Bromine chloride  hydrogen sulfide (1/1) 088 BrClH3P BrCl  PH3 Bromine chloride  phosphine (1/1) 089 BrClN2 BrCl  N2 Bromine chloride  dinitrogen (1/1) 090 BrGeH Ge Bromogermylene 
H 

Br 

091 BrHO3S HBr  SO3 Hydrogen bromide  sulfur trioxide (1/1) 
092 BrHSi 
Si 
Silicon bromide hydride H 
Br 

093 BrH2 D2  BrDihydrogen-d2  bromide (1/1) 094 BrH2P PH2Br Bromophosphine 095 BrH3Si SiH3Br Bromosilane 096 BrO2 BrO2 Bromine dioxide 097 098 099 100 101 102 103 104 105 106 107 108 
109 Br2Eu Br2Ge Br2H2 Br2H2O Br2H2S Br2H3N Br2H3P Br2O Br3Er Br3Ga Br4Nb Br6Er2 
Br6Ga2 EuBr2 GeBr2 HBr  DBr Br2  H2O Br2  H2S NH3  Br2 Br2  PH3 Br2O ErBr3 GaBr3 NbBr4 


Br BrBr 
Er Er 
Br 

Br Br 


Br 
BrBr 
Ga Ga 
Br 


Br 
Br Europium dibromide Germanium dibromide  Hydrogen bromide dimer Dibromine  water (1/1) Dibromine  hydrogen sulfide (1/1) Ammonia  dibromine (1/1) Dibromine  phosphine (1/1) Dibromine monoxide Erbium tribromide Gallium tribromide Niobium tetrabromide Di--bromo-bis[dibromodierbium(III)] 
Di--bromo-bis[dibromogallium(III)] 
Element System Ca- 
No Hill Formula Structure Formula Name 
110 CaHS 
S Calcium hydrogen sulfide Ca H 
111 CaH2N CaNH2 Calcium monoamide 
Element System Ce- 
No Hill Formula Structure Formula Name 
112 CeF4 CeF4 Cerium tetrafluoride 
113 CeI3 	CeI3 Cerium triiodide 
114 Ce2I6 	I I I Cerium triiodide dimer I 
I 

Element System Cl- 
No Hill Formula Structure Formula Name 
115 ClFH2O ClF  H2O Chlorine fluoride  water (1/1) 
116 ClFHe ClF  He Chlorine fluoride  helium (1/1) 
117 ClFN2 ClF  N2 Chlorine fluoride  dinitrogen (1/1) 
118 ClFO FClO Chlorosyl fluoride 
119 ClFO2S ClF  SO2 Chlorine fluoride  sulfur dioxide (1/1) 
120 ClFS 


S	
Sulfur chloride fluoride 
Cl F 
121 ClFSi 
Si 
Silicon monochloride monofluoride Cl 
F 
122 ClF3 ClF3 Chlorine trifluoride 123 ClF4N ClF  NF3 Chlorine fluoride  trifluoroamine (1/1) 124 ClF5OS F5SOCl Pentafluoro(hypochlorito-.O)sulfur 125 ClGeH Ge Chlorogermylene 
H 

Cl 

126 ClHO3S 	HCl  SO3 Hydrogen chloride  sulfur trioxide (1/1) 
127 ClHP 
P 
Chlorophosphino H 
Cl 
128 ClHSi 
Si 
Silicon chloride hydride H 
Cl 
129 ClH2 H2  Cl Dihydrogen  chloride (1/1) 130 ClH2+ ClH +Chloronium 
2 
131 ClH2IO 	ICl  H2O Iodine chloride  water (1/1) 132 ClH2IS H2S  ICl 133 ClH3IN NH3  ICl 134 ClH3IP ICl  PH3 135 ClH3O HCl  H2O 136 ClH4P HCl  PH3 137 ClH5O2 HCl  2H2O 138 ClIN2 ICl  N2 139 ClOP 

P 
Cl 

O 
140 ClO2 

Cl 
O 

O 
141 ClO2P 	O P 
Cl 

O 

142 Cl2Cu CuCl2 143 Cl2Fe FeCl2 144 Cl2Ga2H4 H 
Cl H 
Ga Ga 
H Cl H 
145 Cl2H2O Cl2  H2O 
146 Cl2Na2 	Cl 
Na 
Na Cl 
147 Cl2Ni NiCl2 
148 Cl2O2 O Cl Cl 

O 
149 Cl2S SCl2 150 Cl3Er ErCl3 151 Cl3Gd GdCl3 
Hydrogen sulfide  iodine chloride (1/1) 
Ammonia  iodine chloride (1/1) 
Iodine chloride  phosphine (1/1) 
Hydrogen chloride  water (1/1) 
Hydrogen chloride  phosphine (1/1) 
Hydrogen chloride  water (1/2) 
Iodine chloride  dinitrogen (1/1) 
Phosphoryl chloride 

Chlorine dioxide 
Phosphorus chloride dioxide 
Copper dichloride Iron dichloride Di--chloro-bis[dihydridogallium(III)] 
Dichlorine  water (1/1) Disodium dichloride 
Nickel dichloride Chloryl chloride 
Sulfur dichloride Erbium trichloride Gadolinium trichloride 
152 
153 154 155 156 157 
158 159 160 161 162 163 164 165 166 167 
168 
169 Cl3Lu Cl3NbO Cl3PS Cl3Sc Cl3Tm Cl4H2Si2 
Cl4HfO16 Cl4Nb Cl4O16Zr Cl4Te Cl4U Cl5Nb Cl5Re Cl5Ta Cl5W Cl6Er2 
Cl6Lu2 
Cl6Sc2 LuCl3 NbOCl3 PSCl3 ScCl3 TmCl3 
Cl Cl

HSi SiH

Cl 
Cl

Hf(ClO4)4 NbCl4 Zr(ClO4)4 
TeCl4 UCl4 NbCl5 ReCl5 TaCl5 WCl5 
Cl 

ClCl
Er Er
Cl 
ClCl

Cl 
ClCl
Lu Lu
Cl ClCl

Cl 

ClCl
Sc Sc
Cl 
ClCl

Lutetium trichloride Trichloro(oxo)niobium(V) Thiophosphoryl trichloride Scandium trichloride Thulium trichloride 1,1,2,2-Tetrachlorodisilane 
Tetrakis(perchlorato-.O,.O')hafnium(IV) Niobium tetrachloride Tetrakis(perchlorato-.O,.O')zirconium Tellurium tetrachloride Uranium tetrachloride Niobium pentachloride Rhenium pentachloride Tantalum pentachloride Tungsten pentachloride Di--chloro-bis[dichloroerbium(III)] 
Di--chloro-bis[dichlorolutetium(III)] 
Di--chloro-bis[dichlorodiscandium(III)] 
No Hill Formula Structure Formula Name 
170 CoF2 CoF2 Cobalt difluoride 
Element System Cr- 
No Hill Formula Structure Formula Name 
171 CrF5 CrF5 Chromium pentafluoride 
Element System Cu- 
No  Hill Formula  Structure Formula  Name  
172  CuHO  Cu  O  H  Copper monohydroxide  

Element System F - 
No Hill Formula Structure Formula Name 
173 FHNO HF  NO Hydrogen fluoride  nitrogen monoxide (1/1) 174 FHO3S HF  SO3 Hydrogen fluoride  sulfur trioxide (1/1) 175 FHSi 
Si 
Silicon fluoride hydride 
H F 
176 FH3Si SiH3F Fluorosilane 177 FOP 

P 
Fluorooxophosphine
F O 
178  FPS  F  P  S  Thiophosphoryl fluoride  
179 180 181  F2Fe F2H2O F2H2S  FeF2 F2  H2O F2  H2S  Iron difluoride Difluorine  water (1/1) Difluorine  hydrogen sulfide (1/1)  

182 F2LiNa 
F Li Na F 
183 F2Mn MnF2 184 F2Ni NiF2 185 F2O2W WO2F2 186 F2O6S2 OO 


S 


O 

F 
F O 

S OO 



187 F2Si SiF2 188 F2Zn ZnF2 189 F3NO2S2 F OO 

S 


S 
F 
N 

F 

190 F3NO3S2	O OO 
S 


S 
F 
N 

FF 

191 F3N3O3S3 F ON 
OS 

S 


F N 



N S 
FO 

192 F3NbO NbOF3 193 F3Sb SbF3 194 F3Si SiF3 195 F4Mo MoF4 
196 F4N2Si SiF4  N2 
197 F4Th ThF4 198 F4U UF4 199 F5Mo MoF5 Lithium fluoride  sodium fluoride (1/1) 
Manganese difluoride Nickel difluoride Tungsten(VI) difluoride dioxide -Peroxo-bis(fluorodioxosulfur) 
Silicon difluoride Zinc difluoride [N-(Fluorosulfonyl)imido]sulfurous difluoride 
N-(Fluorosulfonyl)imidosulfuryl fluoride 
1,3,5-Trifluoro-1,3,5-trioxo-1.6,3.6,5.6,2,4,6cyclotrithiatriaza-2,4,6-triene 
Trifluoro(oxo)niobium(V) Antimony trifluoride Trifluorosilyl Molybdenum tetrafluoride Tetrafluorosilane  dinitrogen (1/1) Thorium tetrafluoride Uranium tetrafluoride Molybdenum pentafluoride 200 F6Ir IrF6 Iridium hexafluoride 201 F6Os OsF6 Osmium hexafluoride 202 F6Pt PtF6 Platinum hexafluoride 203 F6Re ReF6 Rhenium hexafluoride 204 F6S SF6 Sulfur hexafluoride 205 F6W WF6 Tungsten hexafluoride 206 F8N4P4 F 
2,2,4,4,6,6,8,8-Octafluoro-2.5,4.5,6.5,8.5
F 

NP 
F cyclotetraphosphaza-1,3,5,7-tetraene FP 
N 

FNP 


PN 
F 

Element System Fe- 
No Hill Formula Structure Formula Name 
207 FeH2 FeH2 Iron dihydride 
Element System Ge- 
No  Hill Formula  Structure Formula  Name  
208  GeHI  Ge  Iodogermylene  
209  GeH2  GeH2  .2-Germane  
210  GeH4  GeH4  Germane  


Element System H - 
No  Hill Formula  Structure Formula  Name  
211  HHeO+  OH+  He  Oxoniumylidene  helium (1/1)  
212  HIKr  HI  Kr  Hydrogen iodide  krypton (1/1)  

213 HIN2 HI  N2 Hydrogen iodide  dinitrogen (1/1) 214 HINe HI  Ne Hydrogen iodide  neon (1/1) 215 HISi 
Si 
Silicon iodide hydride 
H I 
216 HInO 
O 
Indium(I) hydroxide In 
H 
217 HKrN2+ HN=N+  Kr Diazenylium  krypton (1/1) 218 HKrS SH  Kr Mercapto  krypton (1/1) 219 HLiS 
Lithium hydrogen sulfide Li H 
220 HMgO MgOH Magnesium hydroxide 
221 HMgS 
S Magnesium hydrogen sulfide Mg H 
222 HNOS 
NS 
(Z)-Thionyl imide HO 223 HNY Y=N-H Yttrium imide 224 HN2Ne+ Ne  HN=N+ Diazenylium  neon (1/1) 225 HN2O OH  N2 Hydroxyl  dinitrogen (1/1) 226 HN4+ N=N  H+  N=N Hydrogen (1+) ion  dinitrogen (1/2) 227 HNaS 
S Sodium hydrogen sulfide Na H 
228 HNeO+ OH+  Ne Oxoniumylidene  neon (1/1) 229 HNeS Ne  SH Mercapto  neon (1/1) 230 HOP 
P 
Oxophosphane H 
O 234 HSSi Thioxosilyl 


231  HOSi  H  O  Silicon monohydride monoxide  
232  HOY  Y-O-H  Yttrium monohydroxide  
233  HO2  O  Hydrogenperoxyl  



HS 
235 HSSr 
S 
Strontium hydrogen sulfide Sr 
H 
236 HS2 

S 
Disulfanyl H 
S. 
237 H2HeN+ NH2+  He Aminylium  helium (1/1) 238 H2I2 HI  HI Hydrogen iodide dimer 239 H2I2Si HH Diiodosilane 
240 H2I4Si2 I 1,1,2,2-Tetraiododisilane SiH 

I
I


SiH I 

241 H2KrO KR  H2O Krypton  water (1/1) 242 H2LiN LiNH2 Lithium amide 243 H2Mg MgH2 Magnesium dihydride 244 H2MgN MgNH2 Magnesium monoamide 245 H2N NH2 Nitrogen dihydride 246 H2NNa NaNH2 Sodium amide 247 H2NNe+ NH +2  Ne Aminylium  neon (1/1) 
248 H2NS H2NS Nitrogen dihydride monosulfide 
249 H2NSr SrNH2 Strontium monoamide 
250 H2N2O N2O  H2 Dinitrogen monoxide  dihydrogen (1/1) 
251 H2N2O2 N2O  H2O Dinitrogen monoxide  water (1/1) 
252 H2NeO+ H2O+  Ne Oxoniumyl  neon (1/1) 
253 H2NeS H2S  Ne Hydrogen sulfide  neon (1/1) 
254 H2OP H2PO Phosphorus dihydride monoxide 



255 H2OSi 	O Silanone Si 
H 


H 256 H2P 
.2-Phosphane 
H 
H 
257 H2S H2S 	Hydrogen sulfide 

258 H2S3 

S 
Dihydrogen trisulfide 
S 
H 

S 

H 
259 H2Te H2Te Hydrogen telluride 260 H3IO HI  H2O Hydrogen iodide  water (1/1) 261 H3I3Si2 I 1,1,2-Triiododisilane 
HSi I 
I 


SiH2 

262 H3KrN NH3  Kr Ammonia  krypton (1/1) 263 H3NNe NH3  Ne Ammonia  neon (1/1) 264 H3NNe2 NH3  2Ne Ammonia  neon (1/2) 265 H3NO3S NH3  SO3 Ammonia  sulfur trioxide (1/1) 266 H3NO4 HNO3  H2O Nitric acid  water (1/1) 267 H3O+ H3O+ Oxionium 268 H3OP POH3 Phosphine oxide 269 H3P PH3 Phosphine 270 H3S+ H3S+ Sulfonium 271 H3Sb SbH3 Stibine 272 H4I2Si2 
SiH2 
I 1,2-Diiododisilane 
I 
SiH2 
273 H4N2O3 HNO3  NH3 Nitric acid  ammonia (1/1) 
274 H4O2 (H2O)2 Water dimer 
275 H5NS NH3  H2S Ammonia  hydrogen sulfide (1/1) 
276 H6N2 (ND3)2 Ammonia-d3 dimer 

No  Hill Formula  Structure Formula  Name  
277  H6O3  (H2O)3  Water trimer  
278  H8O4  (H2O)4  Water tetramer  
279  H10O5  (H2O)5  Water pentamer  
280  H12O6  (H2O)6  Water hexamer  

Element System He- 
No Hill Formula Structure Formula Name 
281 HeN2O N2O  He Dinitrogen monoxide  helium (1/1) 
Element System Hf- 
No  Hill Formula  Structure Formula  Name  
282  HfN4O12  Hf(NO3)4  Hafnium tetranitrate  
283  HfO2  HfO2  Hafnium dioxide  

Element System I - 
No Hill Formula Structure Formula Name 
284 I2Mn MnI2 Manganese diiodide 285 I2Nd NdI2 Neodymium diiodide 286 I3NbO NbOI3 Triiodo(oxo)niobium(V) 287 I3Nd NdI3 Neodymium triiodide 288 I3Sb SbI3 Antimony triiodide 289 I3Sc ScI3 Scandium triiodide 290 I3Y YI3 Yttrium triiodide 291 I4Mn2 
I 
Di--iodo-bis[iodomanganese(II)] 
IMn MnI
I



292 I4Nb NbI4 Niobium tetraiodide 293 I4Si SiI4 Silicon tetraiodide 294 I6Sc2 I Di--iodo-bis(diiodoscandium) 

Element System Kr- 
No  Hill Formula  Structure Formula  Name  
295  KrNO2  Kr  NO2  Krypton  nitrogen dioxide (1/1)  
296  KrN2O  NNO  Kr  Dinitrogen monoxide  krypton (1/1)  

Element System Li- 
No Hill Formula Structure Formula Name 
297 Li2O Li2O Dilithium oxide 
Element System N - 
No  Hill Formula  Structure Formula  Name  
298  NOP  P=N=O  Phosphorus nitride N-oxide  
299  NO2  NO2  Nitrogen dioxide  
300  N2Ne  N2  Ne  Dinitrogen  neon (1/1)  
301  N2NeO  N2O  Ne  Dinitrogen monoxide  neon (1/1)  
302  N2Ne2O  N2O  2Ne  Dinitrogen monoxide  neon (1/2)  
303  N2OXe  NNO  Xe  Dinitrogen monoxide  xenon (1/1)  
304  N2O2  ON  NO  Dinitrogen dioxide  
305  N2O2S  N2  SO2  Dinitrogen  sulfur dioxide (1/1)  
306  N2O3  N2  O3  Dinitrogen  ozone (1/1)  

307 N2O3 NNO  O2 Dinitrogen monoxide  dioxygen (1/1) 
308 N2O3S N2O  SO2 Dinitrogen monoxide  sulfur dioxide (1/1) 
309 N2O4 O O Dinitrogen tetraoxide 
NN 
O

O 
310 N2O5 N2O5 Dinitrogen pentaoxide 
311 N3O10V O Tris(nitrato-.O)oxovanadium V O2NO 


ONO2 ONO2 
312 N4O N2  N2O Dinitrogen  dinitrogen monoxide (1/1) 313 N4O2 NNO  NNO Dinitrogen monoxide dimer 314 N4O4S SO2  2N2O Sulfur dioxide  dinitrogen monoxide (1/2) 315 N4O12Ti Ti(NO3)4 Titanium tetranitrate 316 N4O12Zr Zr(NO3)4 Zirconium tetranitrate 
Element System O - 
No  Hill Formula  Structure Formula  Name  
317  OP2  P=P=O  Diphosphorus monoxide  
318  O2S  SO2  Sulfur dioxide  
319  O2Zr  ZrO2  Zirconium dioxide  
320  O3S  SO3  Sulfur trioxide  

Element System P - 
No Hill Formula Structure Formula Name 
321 P4 P4 Tetraphosphorus 
