Thermochemischer Radius
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Ist die Gitterenergie einer Verbindung bekannt, kann auch für ein nicht kugelförmiges, mehratomiges Molekül ein Radius errechnet werden, der mit dieser Gitterenergie im Einklang steht. Diesen Radius nennt man Thermochemischen Radius. Man verwendet thermochemische Radien z. B. zur Abschätzung von Bildungsenthalpien vieler Verbindungen.
Die Thermodynamischen Radien ausgewählter Ionen in pm können der nachfolgenden Tabelle entnommen werden (su = Selenourea, esu = Ethylenselenourea, Ph = Phenyl, tu = Thioharnstoff).[1]
Dianionen | Monoanionen | Monokationen | Dikationen | ||||
---|---|---|---|---|---|---|---|
Ion | Radius | Ion | Radius | Ion | Radius | Ion | Radius |
AmF62- | 255 | AgF4- | 231 | N(CH3)4+ | 234 | Co2S2(CO)62+ | 263 |
Bi2Br82- | 392 | AlBr4- | 321 | N2H5+ | 158 | FeW(Se)2(CO)2+ | 260 |
Bi6Br202- | 501 | AlCl4- | 317 | N2H6+ | 158 | I42+ | 207 |
CdCl42- | 307 | AlF4- | 214 | NH(C2H5)3+ | 274 | Mo(Te3)(CO)2+ | 234 |
CeCl62- | 352 | AlH4- | 226 | NH3C2H5+ | 193 | S192+ | 292 |
CeF62- | 249 | AlI4- | 374 | NH3C3H7+ | 225 | S2(S(CH3)2)22+ | 230 |
CO32- | 189 | AsF6- | 243 | NH3CH3+ | 177 | S2I42+ | 231 |
CoCl42- | 306 | AsO2- | 211 | NH3OH+ | 147 | S3N22+ | 184 |
CoF42- | 209 | Au(CN)2- | 266 | NH4+ | 136 | S3NCCNS32+ | 220 |
CoF62- | 256 | AuCl4- | 288 | NH3C2H4OH+ | 203 | S3Se2+ | 326 |
Bi2O72- | 292 | AuF4- | 240 | As3S4+ | 244 | S4N42+ | 186 |
CrF62- | 253 | AuF6- | 235 | As3Se4+ | 253 | S6N42+ | 232 |
CrO42- | 229 | B(OH)4- | 229 | As3Cl4+ | 221 | S82+ | 182 |
CuCl42- | 304 | BF4- | 205 | Br2+ | 155 | Se102+ | 253 |
CuF42- | 213 | BH4- | 205 | Br2+ | 204 | Se172+ | 236 |
GeCl62- | 335 | Br- | 190 | Br3+ | 238 | Se192+ | 296 |
GeF62- | 244 | BrF4- | 231 | Br5+ | 229 | Se2I42+ | 218 |
HfF62- | 248 | BrO3- | 214 | BrClCNH2+ | 175 | Se3N22+ | 182 |
HgI42- | 377 | CF3SO3- | 230 | BrF2+ | 183 | Se42+ | 152 |
IrCl62- | 332 | CH3CO2- | 194 | BrF4+ | 172 | Se4S2N42+ | 224 |
MnCl62- | 314 | Cl- | 168 | C10F8+ | 265 | Se82+ | 186 |
MnF42- | 219 | ClO2- | 195 | C6F6+ | 228 | SeN2S22+ | 182 |
MnF62- | 241 | ClO3- | 208 | Cl(SNSCN)2+ | 347 | (SNP(C2H5)3)22+ | 312 |
MoBr62- | 364 | ClO4- | 225 | Cl2C=NH2+ | 173 | Te(trtu)42+ | 328 |
MoCl62- | 338 | ClS2O6- | 260 | Cl2F+ | 165 | Te(tu)2+ | 196 |
MoF62- | 274 | CN- | 187 | Cl3+ | 182 | Te2(esu)4Br22+ | 356 |
MoO42- | 231 | Cr3O8- | 276 | ClF2+ | 147 | Te2(esu)4Cl22+ | 361 |
NbCl62- | 343 | CuBr4- | 315 | ClO2+ | 118 | Te2(esu)4I22+ | 342 |
NH2- | 128 | F- | 126 | GaBr4+ | 317 | Te2Se22+ | 192 |
Ni(CN)42- | 322 | FeCl4- | 317 | I2+ | 185 | Te2Se42+ | 222 |
NiF42- | 211 | GaCl4- | 328 | I3+ | 225 | Te2Se82+ | 252 |
NiF62- | 249 | H- | 148 | I5+ | 263 | Te3Se32+ | 217 |
O2- | 141 | H2AsO4- | 227 | IBr2+ | 196 | Te3S2+ | 193 |
O22- | 167 | H2PO4- | 213 | ICl2+ | 175 | Te42+ | 169 |
OsBr62- | 365 | HCO2- | 200 | IF6+ | 209 | Te82+ | 187 |
OsCl62- | 336 | HCO3- | 207 | N(S3N2)2+ | 258 | W(CO)4(h3-Te)2+ | 234 |
OsF62- | 276 | HF2- | 172 | N(SCl)2+ | 186 | W2(CO)10Se42+ | 290 |
PbCl42- | 279 | HSO4- | 221 | N(SeCl)2+ | 246 | ||
PbCl62- | 347 | I- | 211 | N(SF2)2+ | 214 | ||
PbF62- | 268 | I2Br- | 261 | N2F+ | 156 | ||
PdBr62- | 354 | I3- | 272 | NO+ | 145 | ||
PdCl42- | 313 | I4- | 300 | NO2+ | 153 | ||
PdCl62- | 333 | IBr2- | 251 | O2+ | 140 | ||
PdF62- | 252 | ICl2- | 235 | O2(SCCF3Cl)2+ | 275 | ||
PoBr62- | 380 | ICl4- | 307 | ONCH3CF3+ | 200 | ||
PoI62- | 428 | IO2F2- | 233 | OsOF5+ | 246 | ||
Pt(NO2)3Cl32- | 364 | IO3- | 218 | P(CH3)3Cl+ | 197 | ||
Pt(NO2)4Cl22- | 383 | IO4- | 231 | P(CH3)3D+ | 196 | ||
Pt(OH)22- | 333 | IrF6- | 242 | PCl4+ | 235 | ||
Pt(SCN)62- | 451 | MnO4- | 220 | S(CH3)2Cl+ | 207 | ||
PtBr42- | 324 | MoF6- | 241 | S(N(C2H5)3)3+ | 439 | ||
PtBr62- | 363 | MoOF5- | 241 | S2(CH3)2Cl+ | 265 | ||
PtCl42- | 307 | N3- | 180 | S2(CH3)2CN | 223 | ||
PtCl62- | 333 | NCO- | 193 | S2(CH3)3+ | 233 | ||
PtF62- | 245 | NbCl6- | 338 | S2Br5+ | 267 | ||
PuCl62- | 349 | NbF6- | 254 | S2N+ | 159 | ||
ReBr62- | 371 | Nb2F11- | 311 | S2N2C2H3+ | 211 | ||
ReCl62- | 337 | NbO3- | 194 | S2NC2(PhCH3)2+ | 310 | ||
ReF62- | 256 | NH2- | 168 | S2NC3H4+ | 218 | ||
ReF82- | 276 | NH2CH2COO- | 252 | S2NC3H8+ | 225 | ||
ReH92- | 257 | NO2- | 187 | S3(CH3)3+ | 239 | ||
ReI62- | 421 | NO3- | 200 | S3Br3+ | 245 | ||
RhF62- | 240 | O2- | 165 | S3C3H7+ | 199 | ||
RuCl62- | 336 | O3- | 199 | S3C4F6+ | 261 | ||
RuF62- | 248 | OH- | 152 | S3CF3CN+ | 263 | ||
S2- | 189 | OsF6- | 252 | S3Cl3+ | 233 | ||
S2O32- | 251 | PaF6- | 249 | S3N2+ | 201 | ||
S2O42- | 262 | PdF6- | 252 | S3N2Cl+ | 232 | ||
S2O52- | 270 | PF6- | 242 | S4N3+ | 231 | ||
S2O62- | 283 | PO3- | 204 | S4N3(Ph)2+ | 316 | ||
S2O72- | 275 | PtF6- | 247 | S4N4H+ | 178 | ||
S2O82- | 291 | PuF5- | 239 | S5N5+ | 257 | ||
S3O62- | 302 | ReF6- | 240 | S7I+ | 262 | ||
S4O62- | 325 | ReO4- | 227 | Sb(NPPh3)4+ | 518 | ||
S6O62- | 382 | RuF6- | 242 | SBr3+ | 220 | ||
ScF62- | 276 | S6- | 305 | SCH3O2+ | 183 | ||
Se62- | 181 | SCN- | 209 | SCH3P(CH3)3+ | 248 | ||
SeBr62- | 363 | SbCl6- | 320 | SCH3PCH3Cl2+ | 205 | ||
SeCl62- | 336 | SbF6- | 252 | SCl(C2H5)2+ | 207 | ||
SeO42- | 229 | Sb2F11- | 312 | SCl2CF3+ | 207 | ||
SiF62- | 248 | Sb3F14- | 374 | SCl2CH3+ | 204 | ||
SiO32- | 195 | SeCl5- | 258 | SCl3+ | 185 | ||
SmF42- | 218 | SeCN6- | 230 | Se3Br3+ | 253 | ||
Sn(OH)62- | 279 | SeH- | 195 | Se3Cl3+ | 245 | ||
SnBr62- | 374 | SH- | 191 | Se3N2+ | 288 | ||
SnCl62- | 345 | SO3F- | 214 | Se3NC12+ | 163 | ||
SnF62- | 265 | S3N3- | 231 | Se6I+ | 260 | ||
SnI62- | 427 | S3N3O4- | 252 | SeBr3+ | 182 | ||
SO32- | 204 | TaCl6- | 352 | SeCl3+ | 192 | ||
SO42-- | 218 | TaF6- | 250 | SeF3+ | 179 | ||
TcBr62- | 363 | TaO3- | 192 | SeI3+ | 238 | ||
TcCl62- | 337 | UF6- | 301 | SeN2Cl+ | 196 | ||
TcF62- | 244 | VF6- | 235 | SeNCl2+ | 157 | ||
TcH92- | 260 | VO3- | 201 | (SeNMe3)3+ | 406 | ||
TcI62- | 4119 | WCl6- | 337 | SeS2N2+ | 282 | ||
Te2- | 220 | WF6- | 246 | SF(C6F5)2+ | 294 | ||
TeBr62- | 383 | WOF5- | 241 | SF2N(CH3)2+ | 210 | ||
TeCl62- | 353 | SF3+ | 172 | ||||
TeI62- | 430 | SFS(C(CF3)2)2+ | 275 | ||||
TeO42- | 238 | SH2C3H7+ | 210 | ||||
Th(NO3)62- | 424 | SN+ | 158 | ||||
ThCl62- | 360 | SNCl5(CH3CN)- | 290 | ||||
ThF62- | 263 | (SNPMe3)3+ | 308 | ||||
TiBr62- | 356 | SNSC(CH3)N+ | 225 | ||||
TiCl62- | 335 | SNSC(CN)CH+ | 209 | ||||
TiF62- | 252 | SNSC(Ph)N+ | 251 | ||||
UCl62- | 354 | SNSC(Ph)NS3N2+ | 327 | ||||
UF62- | 256 | SNSC(PhCH3)N+ | 264 | ||||
VO32- | 204 | Te(N(SiMe3)2)2+ | 371 | ||||
WBr62- | 363 | Te(N3)3+ | 226 | ||||
WCl62- | 339 | Te4Nb3OTe2I6+ | 407 | ||||
WO42- | 237 | TeBr3+ | 235 | ||||
WOCl52- | 334 | TeCl3+ | 216 | ||||
ZnBr42- | 335 | TeCl3(15-Korne-5)+ | 282 | ||||
ZnCl42- | 306 | TeI3+ | 243 | ||||
ZnF42- | 219 | Xe2F11+ | 266 | ||||
ZnI42- | 384 | Xe2F3+ | 221 | ||||
ZrBr42- | 334 | XeF+ | 174 | ||||
ZrCl42- | 306 | XeF3+ | 183 | ||||
ZrCl62- | 348 | XeF5+ | 186 | ||||
ThF62- | 258 | XeOF3+ | 186 |
Weblink
[Bearbeiten | Quelltext bearbeiten]- Thermochemischer Radius auf den Seiten des Eigenschaften-Quellen-Index (EQI), abgerufen am 22. April 2013
Einzelnachweise
[Bearbeiten | Quelltext bearbeiten]- ↑ David R. Lide: CRC Handbook of Chemistry and Physics. Internet Version. 2005.