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Silanone

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The first to postulate a silanone were Kipping & Lloyd in 1901, but their products were in fact siloxanes. It was not until 2014 that a stable silanone was reported. In this compound, silicon is bonded to a SIDipp
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or in the gas phase but not isolated. A synthesis of a stable silanone was reported in 2014. Silanones are of some interest to academic research, with their reactivity being of some relevance to the
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Xiong, Y.; Yao, S.; Driess, M. (2013). "Chemical Tricks To Stabilize Silanones and Their Heavier Homologues with EO Bonds (E=Si–Pb): From Elusive Species to Isolable Building Blocks".
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caused by an unfavorable overlap between the p-orbitals of silicon and oxygen. A second reason for the observed instability is the strongly
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On the proposed thermal interconversion of matrix-isolated dimethylsilylene and 1-methylsilene: their reactions with oxygen atom donors
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Infrared spectroscopic evidence for silicon-oxygen double bonds: silanone and the silanoic and silicic acid molecules
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Sun, T.; Li, J.; Wang, H. (2022). "Recent Advances in the Chemistry of Heavier Group 14 Analogues of Carbonyls".
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F. Stanley Kipping, Ph.D., D.Sc., F.R.S. and Lorenzo L. Lloyd J. Chem. Soc., Trans., 1901,79, 449-459
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Sen, S. S. (2014). "A Stable Silanone with a Three-Coordinate Silicon Atom: A Century-Long Wait is Over".
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M. Bogey; B. Delcroix; A. Walters; J-C Guillemin (1996). "Experimentally Determined Structure of H
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Silicon–Oxygen Double Bonds: A Stable Silanone with a Trigonal-Planar Coordinated Silicon Center.
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Other strategies have recently been used to stabilise silanones, for example coordination to
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Filippou, A. C., Baars, B., Chernov, O., Lebedev, Y. N. and Schnakenburg, G. (2014),
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XLVII.—Organic derivatives of silicon. Triphenylsilicol and alkyloxysilicon chlorides
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group. Its stability is owed to the direct coordination of silicon to
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Charles A. Arrington, Robert West, Josef Michl J. Am. Chem. Soc.,
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Kobayashi, Ryo; Ishida, Shintaro; Iwamoto, Takeaki (2019).
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SiO by Rotational Spectroscopy and Isotopic Substitution".
16: 136: 139:, in line with expectations. It has been described as a 417: 239:Robert Withnall, Lester Andrews J. Am. Chem. Soc., 466: 119:)imidazolidin-2-ylidene) group and a (Cp)Cr(CO) 337: 83:. The reason for this instability is the weak 40:. The general description for this class of 52:Si=O, with silicon connected to a terminal 436: 373: 207: 15: 311: 230: 467: 292: 173: 171: 169: 167: 321:Angew. Chem. Int. Ed., 53: 565–570. 253: 177: 20:The general structure of a silanone 13: 164: 14: 486: 75:Silanones are unstable and favor 411: 367: 331: 1: 157: 7: 10: 491: 101: 220:, 105 (19), pp 6176–6177 243:, 107 (8), pp 2567–2568 475:Organosilicon compounds 438:10.1002/anie.201905198 389:10.1002/asia.202200611 353:10.1002/anie.201209766 327:10.1002/anie.201308433 286:10.1006/jmsp.1996.0048 193:10.1002/anie.201404793 21: 425:Angew. Chem. Int. Ed. 341:Angew. Chem. Int. Ed. 181:Angew. Chem. Int. Ed. 19: 307:10.1039/CT9017900449 148:Lewis acids or bases 131:. The reported Si=O 89:HOMO–LUMO energy gap 278:1996JMoSp.175..421B 249:10.1021/ja00294a070 226:10.1021/ja00357a048 96:silicon–oxygen bond 383:(18): e202200611. 60:and also with two 22: 431:(28): 9425–9428. 347:(16): 4302–4311. 266:J. Mol. Spectrosc 187:(34): 8820–8822. 143:metallosilanone. 42:organic compounds 482: 459: 458: 440: 415: 409: 408: 371: 365: 364: 335: 329: 315: 309: 296: 290: 289: 257: 251: 234: 228: 211: 205: 204: 175: 152:steric shielding 129:steric shielding 107:(1,3-bis(2,6-iPr 70:double bond rule 66:matrix isolation 62:organic residues 490: 489: 485: 484: 483: 481: 480: 479: 465: 464: 463: 462: 416: 412: 372: 368: 336: 332: 316: 312: 297: 293: 263: 258: 254: 235: 231: 212: 208: 176: 165: 160: 122: 118: 114: 110: 104: 77:oligomerisation 51: 47: 12: 11: 5: 488: 478: 477: 461: 460: 410: 377:Chem. Asian J. 366: 330: 310: 291: 272:(2): 421–428. 261: 252: 229: 206: 162: 161: 159: 156: 120: 116: 112: 108: 103: 100: 49: 45: 36:analogue of a 9: 6: 4: 3: 2: 487: 476: 473: 472: 470: 456: 452: 448: 444: 439: 434: 430: 427: 426: 421: 414: 406: 402: 398: 394: 390: 386: 382: 379: 378: 370: 362: 358: 354: 350: 346: 343: 342: 334: 328: 324: 320: 314: 308: 304: 300: 295: 287: 283: 279: 275: 271: 267: 256: 250: 246: 242: 238: 233: 227: 223: 219: 215: 210: 202: 198: 194: 190: 186: 183: 182: 174: 172: 170: 168: 163: 155: 153: 149: 144: 142: 138: 134: 130: 126: 99: 97: 94: 90: 87:with a small 86: 82: 78: 73: 71: 67: 63: 59: 55: 43: 39: 35: 31: 27: 18: 428: 423: 413: 380: 375: 369: 344: 339: 333: 318: 313: 298: 294: 269: 265: 255: 240: 236: 232: 217: 213: 209: 184: 179: 145: 105: 74: 25: 23: 133:bond length 58:double bond 56:atom via a 158:References 455:157056381 405:251104394 135:is 1.526 93:polarized 81:siloxanes 30:chemistry 469:Category 447:31095845 397:35883252 361:23450830 201:24990653 141:cationic 125:chromium 98:, Si–O. 26:silanone 274:Bibcode 127:and to 102:History 85:pi bond 34:silicon 32:is the 453:  445:  403:  395:  359:  199:  54:oxygen 38:ketone 451:S2CID 401:S2CID 443:PMID 393:PMID 357:PMID 241:1985 218:1983 197:PMID 150:and 44:is R 433:doi 385:doi 349:doi 323:doi 303:doi 282:doi 270:175 245:doi 222:doi 189:doi 79:to 28:in 471:: 449:. 441:. 429:58 422:. 399:. 391:. 381:17 355:. 345:52 280:. 268:. 195:. 185:53 166:^ 154:. 111:-C 72:. 24:A 457:. 435:: 407:. 387:: 363:. 351:: 325:: 305:: 288:. 284:: 276:: 262:2 247:: 224:: 203:. 191:: 137:Ă… 121:3 117:3 115:H 113:6 109:2 50:2 48:R 46:1

Index


chemistry
silicon
ketone
organic compounds
oxygen
double bond
organic residues
matrix isolation
double bond rule
oligomerisation
siloxanes
pi bond
HOMO–LUMO energy gap
polarized
silicon–oxygen bond
chromium
steric shielding
bond length
Ă…
cationic
Lewis acids or bases
steric shielding




Angew. Chem. Int. Ed.
doi
10.1002/anie.201404793

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