Structure and Molecular Constants · Molecular Constants Mostly from Microwave, Molecular Beam, and Sub-Doppler Laser Spectroscopy · Asymmetric Top Molecules (Part 2)

• 1 General Introduction
• 2 Asymmetric Top Molecules: Introduction
• 255 C3HArN 2-Propynenitrile - argon (1/1)
• 256 C3HHeN 2-Propynenitrile - helium (1/1)
• 257 C3HNO 3-Oxo-2-propenenitrile
• 258 C3H2 1,2-Propadien-1-ylidene
• 259 C3H2ClN 2-Chloro-2-propenenitrile
• 260 C3H2F6 1,1,1,3,3,3-Hexafluoropropane
• 261 C3H2NP 3-Phosphino-2-propynenitrile
• 262 C3H2OS Ethyne - carbonyl sulfide (1/1)
• 263 C3H3F 3-Fluoro-1-propyne
• 264 C3H3F3 3,3,3-Trifluoro-1-propene
• 265 C3H3F5 1,1,1,2,2-Pentafluoropropane
• 266 C3H3F5 1,1,2-Trifluoroethene - difluoromethane-1/1
• 267 C3H3N 2-Propenenitrile
• 268 C3H3NO 2-Oxiranecarbonitrile
• 269 C3H3NO Oxazole
• 270 C3H3NO Isoxazole
• 271 C3H3NS (Z)-3-Mercapto-2-propenenitrile
• 272 C3H3NS Thiazole
• 273 C3H3NS Isothiazole
• 274 C3H3NSe Selenocyanic acid ethenyl ester
• 275 C3H3N3 1,2,4-Triazine
• 276 C3H4ArN2 1H-Pyrazole - argon (1/1)
• 277 C3H4ArN2 1H-Imidazole - argon (1/1)
• 278 C3H4ClF 1,2 Propadiene - chlorine fluoride (1/1)
• 279 C3H4ClN 2-Chloropropanenitrile
• 280 C3H4ClNO (1E)-1-Chloro-2-nitroso-1-propene
• 281 C3H4F4 1,1-Difluoroethene - difluoromethane (1/1)
• 282 C3H4F4O 1,1,2,2-Tetrafluoro-1-methoxyethane
• 283 C3H4N2 (2Z)-3-Amino-2-propenenitrile
• 284 C3H4N2 1-Propyne - dinitrogen (1/1)
• 285 C3H4O 2-Propyn-1-ol
• 286 C3H4O 2-Propenal
• 287 C3H4OS Ethene - carbonyl sulfide (1/1)
• 288 C3H4O2 (2Z)-3-Hydroxy-2-propenal
• 289 C3H4O2 2-Hydroxy-2-propenal
• 290 C3H4O3 2-Oxopropanoic acid
• 291 C3H5ClO (2-Chloromethyl)oxirane
• 292 C3H5Cl3O 1,1,1-Trichloro-2-methoxyethane
• 293 C3H5FO (2-Fluoromethyl)oxirane
• 294 C3H5F3 1,1,1-Trifluoropropane
• 295 C3H5F3O 3,3,3-Trifluoro-1-propanol
• 296 C3H5F3O 1,1,1-Trifluoro-2-propanol
• 297 C3H5F3O Oxirane - trifluoromethane (1/1)
• 298 C3H5F3S Thiirane - trifluoromethane (1/1)
• 299 C3H5F3Si Trifluoro(2-propenyl)silane
• 300 C3H5N Propanenitrile
• 301 C3H5N 3-Methyl-2H-azirine
• 302 C3H5NO (1E)-Nitrosopropene
• 303 C3H5NO (1E)-2-Propenal oxime
• 304 C3H5NO (1Z)-2-Propenal oxime
• 305 C3H5NO 2-Propenamide
• 306 C3H5NO 2-Nitroso-1-propene
• 307 C3H5NO 2-Azetidinone
• 308 C3H5NO2 Isoxazole - water (1/1)
• 309 C3H5O2Re (η2-Ethyne)methyldioxorhenium
• 310 C3H5P 1,2-Propadienylphosphine
• 311 C3H5P 2-Propynylphosphine
• 312 C3H6 1-Propene
• 313 C3H6ArO 2-Propanone - argon (1/1)
• 314 C3H6ArO 2-Methyloxirane-argon (1/1)
• 315 C3H6ArO Oxetane - argon (1/1)
• 316 C3H6ArO2 1,3-Dioxolane - argon (1/1)
• 317 C3H6ClF Cyclopropane - chlorine fluoride (1/1)
• 318 C3H6ClNO (2E)-1-Chloro-2-propanone oxime
• 319 C3H6F2 1,1-Difluoropropane
• 320 C3H6F2 1,2-Difluoropropane
• 321 C3H6F2 1,3-Difluoropropane
• 322 C3H6F2O Oxirane - difluoromethane (1/1)
• 323 C3H6F6 Difluoromethane trimer
• 324 C3H6KrO 2-Methyloxirane - krypton (1/1)
• 325 C3H6NeO 2-Methyloxirane - neon (1/1)
• 326 C3H6O 2-Propanone
• 327 C3H6O Methoxyethene
• 328 C3H6O Oxetane
• 329 C3H6OS (1Z)-Propanethial S-oxide
• 330 C3H6OS (1E)-Propanethial S-oxide
• 331 C3H6OS2 Oxybismethane - carbon disulfide (1/1)
• 332 C3H6O2 1-Hydroxy-2-propanone
• 333 C3H6O2 1,3-Dioxolane
• 334 C3H6O2 Oxybismethane - carbon monoxide (1/1)
• 335 C3H6O2S 2-Mercaptoacetic acid methyl ester
• 336 C3H6O2S Oxybismethane - carbonyl sulfide (1/1)
• 337 C3H6O3 1,3-Dihydroxy-2-propanone
• 338 C3H6O3 2,3-Dihydroxypropanal
• 339 C3H6O3 2-Hydroxypropionic acid
• 340 C3H6O3 Oxybismethane - carbon dioxide (1/1)
• 341 C3H6S (Methylthio)ethene
• 342 C3H6S 2-Methylthiirane
• 343 C3H7Cl 1-Chloropropane
• 344 C3H7ClO 1-Chloro-2-propanol
• 345 C3H7ClO 2-Chloro-1-propanol
• 346 C3H7ClO Oxetane - hydrogen chloride (1/1)
• 347 C3H7ClS Thietane - hydrogen chloride (1/1)
• 348 C3H7ClSi 1-Chlorosilacyclobutane
• 349 C3H7FO Oxetane - hydrogen fluoride (1/1)
• 350 C3H7FS Thietane - hydrogen fluoride (1/1)
• 351 C3H7F3Si Trifluoro(propyl)silane
• 352 C3H7N Azetidine
• 353 C3H7NO N-Ethylformamide
• 354 C3H7NO N-Methylacetamide
• 355 C3H7NO Propanamide
• 356 C3H7NO2 Alanine
• 357 C3H7NO2 β-Alanine
• 358 C3H7NO2 N-Methylglycine
• 359 C3H7NO2 2-Hydroxypropanamide
• 360 C3H7NO2 2-Methoxyacetamide
• 361 C3H7NO2 Carbamic acid ethyl ester
• 362 C3H7P 2-Propenylphosphine
• 363 C3H8 Propane
• 364 C3H8Ar Propane - argon (1/1)
• 365 C3H8Ge 2-Propenylgermane
• 366 C3H8N2O 2-Aminopropanamide
• 367 C3H8Ne Propane - neon (1/1)
• 368 C3H8O 1-Propanol
• 369 C3H8O Methoxyethane
• 370 C3H8O 2-Propanol
• 371 C3H8O2 1,2-Propanediol
• 372 C3H8O2 Dimethoxymethane
• 373 C3H8O2 Oxetane - water (1/1)
• 374 C3H8O3 1,2,3-Propanetriol
• 375 C3H9N3Si Azidotrimethylsilane
• 376 C3H9O3P P-Methylphosphonic acid dimethyl ester
• 377 C3H10N2O2 Alaninamide - water (1/1)
• 378 C3O3S3 Carbonyl sulfide trimer
• 379 C3O4S2 Carbon dioxide - carbonyl sulfide (1/2)
• 380 C3O5S Carbon dioxide - carbonyl sulfide (2/1)
• 381 C3Si Silicon carbide
• 382 C4Cl2F4 1,2-Dichloro-3,3,4,4-tetrafluorocyclobutene
• 383 C4F2O3 3,4-Difluoro-2,5-furandione
• 384 C4F10 1,1,1,2,2,3,3,4,4,4-Decafluorobutane
• 385 C4HN 3-Cyano-1,2-propadienylidene
• 386 C4HN 2-Cyano-2-cyclopropen-1-ylidene
• 387 C4H2 1,2,3-Butatrien-1-yliden
• 388 C4H2Ar 1,3-Butadiyne - argon (1/1)
• 389 C4H2FeO4 Tetracarbonyldihydroiron
• 390 C4H2N2 (2Z)-2-Butenedinitrile
• 391 C4H2O2S2 Ethyne - carbonyl sulfide (1/2)
• 392 C4H2O4Os Tetracarbonyldihydroosmium
• 393 C4H2O4Ru Tetracarbonyldihydroruthenium
• 394 C4H2S 1,1’-Thiobisethyne
• 395 C4H2S 1,2,3-Butatrien-1-thione
• 396 C4H2Si 1,2,3-Butatrienylidenesilylene
• 397 C4H3F7O 1,1,1,3,3,3-Hexafluoro-2-(fluoromethoxy)propane
• 398 C4H3NO2 Isoxazole - carbon monoxide (1/1)
• 399 C4H3NS Thiocyanic acid 1,2-propadien-1-yl ester
• 400 C4H4 1-Butene-3-yne
• 401 C4H4ArN2 Pyridazine - argon (1/1)
• 402 C4H4ArN2 Pyrimidine - argon (1/1)
• 403 C4H4ArS Thiophene - argon (1/1)
• 404 C4H4ClFO Furan - chlorine fluoride (1/1)
• 405 C4H4ClFS Thiophene - chlorine fluoride (1/1)
• 406 C4H4F2 (E,Z)-1,4-Difluoro-1,3-butadiene
• 407 C4H4F2 trans-3,4-Difluorocyclobutene
• 408 C4H4F2 1,1-Difluoroethene - ethyne (1/1)
• 409 C4H4N2 Pyrimidine
• 410 C4H4N2 Pyridazine
• 411 C4H4N2Ne Pyrimidine-neon (1/1)
• 412 C4H4N2O2 2,4(1H,2H)-Pyrimidinedione
• 413 C4H4O Furan
• 414 C4H4O2 Ethenone dimer
• 415 C4H4O2S2 Ethene - carbonyl sulfide (1/2)
• 416 C4H4S Thiophene
• 417 C4H4SSe 1,2-Thiaselenin
• 418 C4H4Se2 1,2-Diselenin
• 419 C4H5Br 4-Bromo-1-butyne
• 420 C4H5BrO Furan - hydrogen bromide (1/1)
• 421 C4H5BrS Thiophene - hydrogen bromide (1/1)
• 422 C4H5Cl 4-Chloro-1-butyne
• 423 C4H5ClS Thiophene - hydrogen chloride (1/1)
• 424 C4H5F 4-Fluoro-1-butyne
• 425 C4H5F Fluoroethene - ethyne (1/1)
• 426 C4H5FO Furan - hydrogen fluoride (1/1)
• 427 C4H5FO2 1-Fluorocyclopropanecarboxylic acid
• 428 C4H5FS Thiophene - hydrogen fluoride (1/1)
• 429 C4H5NS 3-Isothiocyanato-1-propene
• 430 C4H5NS 2-Methylthiazole
• 431 C4H6 1,3-Butadiene
• 432 C4H6ArO Cyclobutanone - argon (1/1)
• 433 C4H6ArO 2,3-Dihydrofuran - argon (1/1)
• 434 C4H6ArO 2,5-Dihydrofuran - argon (1/1)
• 435 C4H6ClF 1,3-Butadiene - chlorine fluoride (1/1)
• 436 C4H6ClF Methylenecyclopropane - chlorine fluoride (1/1)
• 437 C4H6ClFO 2,5-Dihydrofuran - chlorine fluoride (1/1)
• 438 C4H6ClO2P 2-Chloro-4,5-dimethyl-1,3,2-dioxaphosphole
• 439 C4H6F2 1,1-Difluorocyclobutane
• 440 C4H6KrO 2,5-Dihydrofuran - krypton (1/1)
• 441 C4H6N2O Pyrimidine - water (1/1)
• 442 C4H6N2O Pyridazine - water (1/1)
• 443 C4H6N2O Pyrazine - water (1/1)
• 444 C4H6N2O2 2,5-Piperazinedione
• 445 C4H6NeO 2,5-Dihydrofuran - neon (1/1)
• 446 C4H6O 2-Butyn-1-ol
• 447 C4H6O 3-Butyn-1-ol
• 448 C4H6O 2,5-Dihydrofuran
• 449 C4H6OS Dihydro-3(2H)-thiophenone
• 450 C4H6O2 2,2'-Bisoxirane
• 451 C4H6S Thiirane - ethyne (1/1)
• 452 C4H7ArCl Chlorocyclobutane - argon (1/1)
• 453 C4H7Br Methylenecyclopropane - hydrogen bromide (1/1)
• 454 C4H7BrO 2,5-Dihydrofuran - hydrogen bromide (1/1)
• 455 C4H7Cl 1-Chloro-2-methyl-1-propene
• 456 C4H7Cl (Chloromethyl)cyclopropane
• 457 C4H7Cl Chlorocyclobutane
• 458 C4H7ClO Cyclobutanone - hydrogen chloride (1/1)
• 459 C4H7FO 1-Fluorocyclopropanemethanol
• 460 C4H7FO 2,5-Dihydrofuran - hydrogen fluoride (1/1)
• 461 C4H7F3O Oxybismethane - 1,1,2-trifluoroethene (1/1)
• 462 C4H7NO3 N-Acetylglycine
• 463 C4H8ArO Tetrahydrofuran - argon (1/1)
• 464 C4H8ArS Tetrahydrothiophene - argon (1/1)
• 465 C4H8F2O Oxybismethane - 1,1-difluoroethene (1/1)
• 466 C4H8N2O 1-Nitrosopyrrolidine
• 467 C4H8N2O2 4-Nitrosomorpholine
• 468 C4H8O 3-Buten-1-ol
• 469 C4H8O Ethoxyethene
• 470 C4H8O 2,2-Dimethyloxirane
• 471 C4H8O trans-2,3-Dimethyloxirane
• 472 C4H8O Cyclopropanemethanol
• 473 C4H8O Tetrahydrofuran
• 474 C4H8O Oxybismethane - ethyne (1/1)
• 475 C4H8OS Tetrahydrothiophene-3-ol
• 476 C4H8O2 Tetrahydro-3-furanol
• 477 C4H8O2 Cyclobutanone - water (1/1)
• 478 C2H8S 2,2-Dimethylthiirane
• 479 C4H8S trans-2,3-Dimethylthiirane
• 480 C4H8S Tetrahydrothiophene
• 481 C4H8Se 3-Butene-1-selenol
• 482 C4H8Se Cyclopropanemethaneselenol
• 483 C4H8Se Tetrahydroselenophene
• 484 C4H9Cl 1-Chlorobutane
• 485 C4H9ClO Tetrahydrofuran - hydrogen chloride (1/1)
• 486 C4H9ClS Tetrahydrothiophen - hydrogen chloride (1/1)
• 487 C4H9ClS 1-Chloro-2-(ethylthio)ethane
• 488 C4H9F 1-Fluorobutane
• 489 C4H9FO Tetrahydrofuran - hydrogen fluoride (1/1)
• 490 C4H9FS Tetrahydrothiophene - hydrogen fluoride (1/1)
• 491 C4H9N Cyclobutanamine
• 492 C4H9N Pyrrolidine
• 493 C4H9NO N-Ethyl-N-methylformamide
• 494 C4H9NO (1E)-Butanal oxime
• 495 C4H9NO (1E)-2-Methylpropanal oxime
• 496 C4H9NO Morpholine
• 497 C4H9P (Cyclopropylmethyl)phosphine
• 498 C4H10ArO 2-Butanol - argon (1/1)
• 499 C4H10FO2P P-Methylphosphonofluoridic acid 1-methylethyl ester
• 500 C4H10O 2-Butanol
• 501 C4H10O Oxybisethane
• 502 C4H10O Cyclopropane - methanol (1/1)
• 503 C4H10OS 2-(Ethylthio)ethanol
• 504 C4H10OS Tetrahydrothiophene - water (1/1)
• 505 C4H10O2S 2,2'-Thiobisethanol
• 506 C4H10O3 Tetrahydro-3-furanol - water (1/1)
• 507 C4H10O3 1,4-Dioxane - water (1/1)
• 508 C4H10S 2-Methyl-2-propanethiol
• 509 C4H10S 1,1′-Thiobisethane
• 510 C4H11NO Pyrrolidine - water (1/1)
• 511 C4H11NO2 Morpholine - water (1/1)
• 512 C4H12O2 Oxybismethane dimer
• 513 C5H2 1,2,3,4-Pentatetraenylidene
• 514 C5H2 1,2-Pentadien-4-ynylidene
• 515 C5H2 2-Ethynyl-2-cyclopropen-1-ylidene
• 516 C5H2 2-Cyclopropen-1-ylideneethenylidene
• 517 C5H2S 1,2,3,4-Pentatetraen-1-thione
• 518 C5H3N 4-Penten-2-ynenitrile
• 519 C5H3N (2E)-2-Penten-4-ynenitrile
• 520 C5H3N (2Z)-2-Penten-4-ynenitrile
• 521 C5H4OS Ethyne - carbonyl sulfide (2/1)
• 522 C5H4O2 2-Furancarboxaldehyde
• 523 C5H4O2 Furan - carbon monoxide (1/1)
• 524 C5H5N Pyridine
• 525 C5H5NNe Pyridine - neon (1/1)
• 526 C5H5NO 2(1H)-Pyridinone
• 527 C5H5NO 2-Pyridinol
• 528 C5H5NO3S Pyridine - sulfur trioxide (1/1)
• 529 C5H6BrN Pyridine - hydrogen bromide (1/1)
• 530 C5H6ClN Pyridine - hydrogen chloride (1/1)
• 531 C5H6FN (2E)-4-Fluoro-2-pentenenitrile
• 532 C5H6FN Pyridine - hydrogen fluoride (1/1)
• 533 C5H6N2 2-Pyridinamine
• 534 C5H6N2O2 5-Methyl-2,4(1H,3H)-pyrimidinedione
• 535 C5H6O 2-Cyclopenten-1-one
• 536 C5H6O2 2-Methoxyfuran
• 537 C5H7ArN N-Methylpyrrole - argon (1/1)
• 538 C5H7Ar2N N-Methylpyrrole - argon (1/2)
• 539 C5H7N 1-Ethynylcyclopropanamine
• 540 C5H7N 1-Methyl-1H-pyrrole
• 541 C5H7NO2 2(1H)-Pyridinone - water (1/1)
• 542 C5H8 3-Methyl-1,2-butadiene
• 543 C5H8ArO Cyclopentanone - argon (1/1)
• 544 C5H8NeO Cyclopentanone - neon (1/1)
• 545 C5H8O 2-Cyclopropylideneethanol
• 546 C5H8O 1-Ethenylcyclopropanol
• 547 C5H8O 6-Oxabicyclo[3.1.0]hexane
• 548 C5H9Br Bromocyclopentane
• 549 C5H9Cl Methylenecyclobutane - hydrogen chloride (1/1)
• 550 C5H9ClO 6-Oxabicyclo[3.1.0]hexane - hydrogen chloride (1/1)
• 551 C5H9F3O2 1,4-Dioxane - trifluoromethane (1/1)
• 552 C5H9N Pentanenitrile
• 553 C5H9N 1-Ethenylcyclopropanamine
• 554 C5H9NO 1-Pyrrolidinecarboxaldehyde
• 555 C5H9NO Cyclopentanone oxime
• 556 C5H9NO 2-Piperidinone
• 557 C5H9NO2 Proline
• 558 C5H9NO2 4-Morpholinecarboxaldehyde
• 559 C5H9NO3 (4S)-4-Hydroxy-L-proline
• 560 C5H9NO3 (4R)-4-Hydroxy-L-proline
• 561 C5H10 1-Pentene
• 562 C5H10N2O 1-Nitrosopiperidine
• 563 C5H10N2O 2-Pyrrolidinecarboxamide
• 564 C5H10O 3,3-Dimethyloxetane
• 565 C5H10O Tetrahydro-2H-pyran
• 566 C5H10O2 1,3-Dioxepane
• 567 C5H10S Tetrahydro-2H-thiopyran
• 568 C5H11ClO Tetrahydro-2H-pyran - hydrogen chloride (1/1)
• 569 C5H11ClS Tetrahydro-2H-thiopyran - hydrogen chloride (1/1)
• 570 C5H11FO 3,3-Dimethyloxetane - hydrogen fluoride (1/1)
• 571 C5H11FO Tetrahydro-2H-pyran - hydrogen fluoride (1/1)
• 572 C5H11FS Tetrahydro-2H-thiopyran - hydrogen fluoride (1/1)
• 573 C5H11N Piperidine
• 574 C5H11NO2 Valine
• 575 C5H12N2O 2-Amino-3-methylbutyrimidic acid
• 576 C5H12O2 Tetrahydro-2H-pyran - water (1/1)
• 577 C5H12Si Silacyclohexane
• 578 C5H12Si 1,1-Dimethylsilacyclobutane
• 579 C5H13NO Piperidine - water (1/1)
• 580 C5H13O3P P-Methylphosphonic acid diethylester