272:
521:(1983); Honorary Fellow, Balliol College, Oxford (1974); Tilden Medal of the Chemical Society (1954); Harrison Howe Award of the American Chemical Society (1961); Robert Robinson Medal, Chemical Society (1974); G.W. Wheland Medal of the University of Chicago (1976); Evans Award, The Ohio State University (1977); Southwest Regional Award of the American Chemical Society (1978);
44:
357:, which witnessed feverish activity for several decades and greatly expanded the chemists' understanding of cyclic π-electron systems. Also in 1945, Dewar devised the then novel notion of a π complex, which he proposed as an intermediate in the
1213:
490:). It is worth noting that in 2006, the equivalent calculation takes less than 1 minute on a personal computer. In 2006, the same structure computation can now be completed using high-level
1208:
566:
502:
1203:
864:
443:
147:
296:
Dewar was the son of
Scottish parents, Annie Balfour (Keith) and Francis Dewar. He received the degrees of Bachelor of Arts, Master of Arts, and
1188:
1193:
779:
673:
514:
498:
procedures in less than two days, and semiempirical programs can be used to optimise the structures of molecules with perhaps 10,000 atoms.
370:
143:
491:
335:
Dewar's reputation for providing original solutions to vexing puzzles first developed when he was still a postdoctoral fellow at the
313:
1223:
630:
1218:
738:
690:
466:
computer program, and which for the first time enabled the quantitative study of the structure and mechanism of reaction (
325:
1036:(1952). "A Molecular Orbital Theory of Organic Chemistry. V. Theories of Reactivity and the Relationship between Them".
518:
139:
166:
976:(1952). "A Molecular Orbital Theory of Organic Chemistry. III. Charge Displacements and Electromeric Substituents".
1198:
526:
495:
392:, and which in many ways originated the modern era of theoretical and computational organic chemistry. Following
482:(with 49 atoms) at a quantum mechanical level (the calculation taking several days of the then state-of-the-art
178:
301:
135:
561:
525:(1982); James Flack Norris Award of the American Chemical Society (1984); William H. Nichols Award of the
361:
rearrangement. This offered the first correct rationalisation of the electronic structure of complexes of
343:, a mould product whose structure had baffled the leading chemists of the day. It involved a new kind of
417:
413:
393:
389:
329:
321:
285:
220:
210:
432:
1183:
1178:
907:
807:
336:
317:
297:
205:
124:
104:
1066:(1952). "A Molecular Orbital Theory of Organic Chemistry. VI. Aromatic Substitution and Addition".
946:(1952). "A Molecular Orbital Theory of Organic Chemistry. II. The Structure of Mesomeric Systems".
385:
259:
215:
72:
925:
823:
583:
332:
in 1989. He retired in 1994 as
Professor Emeritus at the University of Florida. He died in 1997.
474:(i.e. large) systems. This was illustrated in 1974 by computing (using the technique of energy
1141:
775:
669:
601:
530:
436:
377:
184:
76:
1133:
1102:
1093:
M. J. S. Dewar (1971). "Aromatic (Huckel) and
Antiaromatic (antiHuckel) Transition states".
1075:
1045:
1015:
985:
955:
915:
873:
815:
707:
661:
575:
467:
428:
409:
362:
246:
234:
271:
17:
459:
401:
340:
275:
381:
911:
811:
533:(1989); WATOC Medal (World Association of Theoretical Organic Chemists Medal), (1990).
455:
397:
1172:
483:
587:
929:
827:
651:
542:
487:
425:
160:
43:
862:(1952). "A Molecular Orbital Theory of Organic Chemistry. I. General Principles".
1121:
475:
354:
85:
80:
742:
665:
529:(1986); Auburn-G. M. Kosolapoff Award of the American Chemical Society (1988);
353:. The discovery of the tropolone structure launched the field of non-benzenoid
1124:(1978). "ChemInform Abstract: MNDO Parameters for the Third Period Elements".
1006:(1952). "A Molecular Orbital Theory of Organic Chemistry. IV. Free Radicals".
522:
405:
172:
68:
1145:
376:
In the early 1950s, Dewar wrote a famous series of six articles on a general
564:(1998). "Michael James Steuart Dewar. 24 September 1918 – 11 October 1997".
442:
He is known most famously for the development in the 1970s and 1980s of the
358:
349:
1137:
1106:
579:
617:
655:
421:
344:
1079:
1049:
1019:
989:
959:
877:
366:
920:
895:
819:
347:
structure with a seven-membered ring for which Dewar coined the term
228:
324:
in 1959 and then to the first Robert A. Welch research chair at the
758:
328:
in 1963. After a long and productive period there, he moved to the
463:
447:
270:
1214:
Members of the
International Academy of Quantum Molecular Science
451:
479:
1161:
380:
Theory of
Organic Chemistry, which extended and generalised
631:"Michael J. S. Dewar September 24, 1918 – October 10, 1997"
660:. ACS Symposium Series. Vol. 1122. pp. 139–153.
638:
Biographical
Memoirs of the National Academy of Sciences
896:"Mechanism of the Benzidine and Related Rearrangements"
841:
M. J. S. Dewar (1951). "A review of π Complex Theory".
284:(24 September 1918 – 10 October 1997) was an American
531:
Tetrahedron Prize for
Creativity in Organic Chemistry
567:
Biographical
Memoirs of Fellows of the Royal Society
654:(2013). "Michael J. S. Dewar: A Model Iconoclast".
384:'s original quantum mechanical treatments by using
255:
245:
227:
201:
153:
131:
120:
112:
93:
50:
34:
503:International Academy of Quantum Molecular Science
439:in 1964, and now a flourishing area of chemistry.
420:) to understanding pericyclic reactivity based on
416:(which he erroneously felt had been pioneered by
312:Dewar was appointed to the Chair in Chemistry at
339:. In 1945, he deduced the correct structure for
431:. He did not however believe in the utility of
408:reactions, Dewar championed (concurrently with
8:
1209:Academics of Queen Mary University of London
774:. Columbus, OH: American Chemical Society.
478:) the structure of a molecule as large as
42:
31:
919:
739:"Dewar page from the University of Texas"
602:"Michael J. S. Dewar, PhD Chemistry Tree"
1068:Journal of the American Chemical Society
1038:Journal of the American Chemical Society
1008:Journal of the American Chemical Society
978:Journal of the American Chemical Society
948:Journal of the American Chemical Society
865:Journal of the American Chemical Society
854:
852:
798:(1945). "Structure of Stipitatic Acid".
754:
752:
444:Semi-empirical quantum chemistry methods
148:Semi-empirical quantum chemistry methods
629:Josef Michl and Marye Anne Fox (1998).
613:
611:
553:
733:
731:
729:
727:
725:
723:
706:Dewar, Michael James Steuart (1942).
515:American Academy of Arts and Sciences
513:His accolades include: Fellow of the
7:
716:(PhD thesis). University of Oxford.
25:
1204:Alumni of Balliol College, Oxford
1120:Dewar, M. J. S.; Mckee, M. L.;
692:Who's Who in American Education
1:
1189:University of Florida faculty
1126:Chemischer Informationsdienst
657:Pioneers of Quantum Chemistry
326:University of Texas at Austin
1194:Fellows of the Royal Society
519:National Academy of Sciences
689:Cook, Robert Cecil (1963).
371:Dewar–Chatt–Duncanson model
282:Michael James Steuart Dewar
144:Dewar–Chatt–Duncanson model
55:Michael James Steuart Dewar
18:Michael James Stewart Dewar
1240:
666:10.1021/bk-2013-1122.ch005
1162:https://www.cesdewar.com/
527:American Chemical Society
320:in 1951. He moved to the
265:
194:
41:
618:Michael Dewar IAQMS page
545:and C.E. Steuart Dewar.
292:Education and early life
179:William H. Nichols Medal
140:Dewar–Zimmerman analysis
770:Dewar, Michael (1992).
501:He was a member of the
302:Balliol College, Oxford
136:Dewar reactivity number
1224:Computational chemists
1138:10.1002/chin.197834001
1107:10.1002/anie.197107611
580:10.1098/rsbm.1998.0009
517:(1966); Member of the
278:
759:List of IAQMS members
369:, later known as the
330:University of Florida
322:University of Chicago
274:
221:University of Florida
211:University of Chicago
1219:Theoretical chemists
1095:Angew. Chem. Int. Ed
843:Bull. Soc. Chim. Fr.
772:A semiempirical life
745:on 16 November 2005.
562:Murrell, John Norman
541:He is the father of
414:alternative approach
337:University of Oxford
318:University of London
206:University of London
125:University of Oxford
105:Gainesville, Florida
1080:10.1021/ja01133a043
1050:10.1021/ja01133a042
1020:10.1021/ja01133a041
990:10.1021/ja01133a040
960:10.1021/ja01133a039
912:1945Natur.156..784D
878:10.1021/ja01133a038
812:1945Natur.155...50D
604:. academictree.org.
386:perturbation theory
308:Career and research
286:theoretical chemist
216:University of Texas
73:Ahmednagar District
509:Awards and honours
496:density functional
433:Möbius aromaticity
314:Queen Mary College
279:
1074:(13): 3357–3363.
1044:(13): 3355–3356.
1014:(13): 3353–3354.
984:(13): 3350–3353.
954:(13): 3345–3350.
872:(13): 3341–3345.
781:978-0-8412-1771-3
675:978-0-8412-2716-3
437:Edgar Heilbronner
429:transition states
400:'s suggestion of
378:Molecular orbital
363:transition metals
269:
268:
256:Doctoral students
251:Frederick E. King
196:Scientific career
185:Tetrahedron Prize
77:Bombay Presidency
65:24 September 1918
16:(Redirected from
1231:
1199:British chemists
1164:
1156:
1150:
1149:
1117:
1111:
1110:
1090:
1084:
1083:
1060:
1054:
1053:
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1023:
1000:
994:
993:
970:
964:
963:
940:
934:
933:
923:
921:10.1038/156784a0
888:
882:
881:
856:
847:
846:
838:
832:
831:
820:10.1038/155050b0
792:
786:
785:
767:
761:
756:
747:
746:
741:. Archived from
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718:
717:
703:
697:
696:
686:
680:
679:
648:
642:
641:
635:
626:
620:
615:
606:
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468:transition state
462:that are in the
435:, introduced by
410:Howard Zimmerman
390:resonance theory
260:Nenad Trinajstić
247:Doctoral advisor
241:
100:
64:
62:
46:
32:
27:American chemist
21:
1239:
1238:
1234:
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1230:
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1169:
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1157:
1153:
1119:
1118:
1114:
1101:(11): 761–776.
1092:
1091:
1087:
1064:Dewar, M. J. S.
1062:
1061:
1057:
1034:Dewar, M. J. S.
1032:
1031:
1027:
1004:Dewar, M. J. S.
1002:
1001:
997:
974:Dewar, M. J. S.
972:
971:
967:
944:Dewar, M. J. S.
942:
941:
937:
892:Dewar, M. J. S.
890:
889:
885:
860:Dewar, M. J. S.
858:
857:
850:
840:
839:
835:
806:(3924): 50–51.
796:Dewar, M. J. S.
794:
793:
789:
782:
769:
768:
764:
757:
750:
737:
736:
721:
705:
704:
700:
688:
687:
683:
676:
650:
649:
645:
633:
628:
627:
623:
616:
609:
600:
599:
595:
560:
559:
555:
551:
539:
511:
402:selection rules
341:stipitatic acid
310:
294:
276:Stipitatic acid
239:
219:
214:
209:
190:
146:
142:
138:
121:Alma mater
108:
102:
98:
97:10 October 1997
89:
83:
66:
60:
58:
57:
56:
37:
28:
23:
22:
15:
12:
11:
5:
1237:
1235:
1227:
1226:
1221:
1216:
1211:
1206:
1201:
1196:
1191:
1186:
1181:
1171:
1170:
1166:
1165:
1151:
1112:
1085:
1055:
1025:
995:
965:
935:
883:
848:
833:
787:
780:
762:
748:
719:
709:New explosives
698:
681:
674:
643:
621:
607:
593:
552:
550:
547:
538:
535:
510:
507:
309:
306:
293:
290:
267:
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257:
253:
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249:
243:
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235:New explosives
231:
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199:
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176:
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164:
157:
155:
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133:
132:Known for
129:
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118:
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114:
110:
109:
103:
101:(aged 79)
95:
91:
90:
67:
54:
52:
48:
47:
39:
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35:
26:
24:
14:
13:
10:
9:
6:
4:
3:
2:
1236:
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1215:
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1207:
1205:
1202:
1200:
1197:
1195:
1192:
1190:
1187:
1185:
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1180:
1177:
1176:
1174:
1163:
1160:
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1147:
1143:
1139:
1135:
1131:
1127:
1123:
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1021:
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969:
966:
961:
957:
953:
949:
945:
939:
936:
931:
927:
922:
917:
913:
909:
906:(3974): 784.
905:
901:
897:
893:
887:
884:
879:
875:
871:
867:
866:
861:
855:
853:
849:
844:
837:
834:
829:
825:
821:
817:
813:
809:
805:
801:
797:
791:
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773:
766:
763:
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749:
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734:
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685:
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647:
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625:
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619:
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589:
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581:
577:
573:
569:
568:
563:
557:
554:
548:
546:
544:
537:Personal life
536:
534:
532:
528:
524:
520:
516:
508:
506:
504:
499:
497:
493:
489:
485:
484:supercomputer
481:
477:
473:
469:
465:
461:
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453:
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137:
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111:
106:
96:
92:
87:
82:
81:British India
78:
74:
70:
53:
49:
45:
40:
36:Michael Dewar
33:
30:
19:
1158:
1154:
1129:
1125:
1122:Rzepa, H. S.
1115:
1098:
1094:
1088:
1071:
1067:
1063:
1058:
1041:
1037:
1033:
1028:
1011:
1007:
1003:
998:
981:
977:
973:
968:
951:
947:
943:
938:
903:
899:
891:
886:
869:
863:
859:
842:
836:
803:
799:
795:
790:
771:
765:
743:the original
713:
708:
701:
691:
684:
656:
652:Eamonn Healy
646:
637:
624:
596:
571:
565:
556:
543:Robert Dewar
540:
512:
500:
476:minimisation
471:
441:
426:antiaromatic
382:Erich HĂĽckel
375:
348:
334:
311:
295:
281:
280:
233:
202:Institutions
195:
161:Tilden Prize
99:(1997-10-10)
29:
1184:1997 deaths
1179:1918 births
714:ethos.bl.uk
574:: 129–140.
418:M. G. Evans
355:aromaticity
127:(BA, DPhil)
113:Nationality
86:Maharashtra
1173:Categories
549:References
523:Davy Medal
470:) of many
406:pericyclic
173:Davy Medal
69:Ahmednagar
61:1918-09-24
1146:0009-2975
845:: C71–79.
492:ab initio
359:benzidine
350:tropolone
223:1989–1994
894:(1945).
588:71610928
488:CDC 6600
486:time, a
422:aromatic
398:Hoffmann
394:Woodward
345:aromatic
116:American
88:, India)
84:(now in
930:4068424
908:Bibcode
828:4086209
808:Bibcode
367:alkenes
316:of the
1144:
1132:(34).
928:
900:Nature
826:
800:Nature
778:
672:
586:
240:(1942)
238:
229:Thesis
218:1963–
213:1959–
208:1951–
187:(1989)
181:(1986)
175:(1982)
169:(1960)
163:(1954)
154:Awards
1159:DEWAR
926:S2CID
824:S2CID
634:(PDF)
584:S2CID
464:MOPAC
448:MINDO
412:) an
365:with
300:from
298:DPhil
1142:ISSN
776:ISBN
670:ISBN
472:real
458:and
452:MNDO
424:and
404:for
396:and
388:and
107:, US
94:Died
51:Born
1134:doi
1103:doi
1076:doi
1046:doi
1016:doi
986:doi
956:doi
916:doi
904:156
874:doi
816:doi
804:155
662:doi
576:doi
494:or
480:LSD
460:PM3
456:AM1
167:FRS
1175::
1140:.
1128:.
1099:10
1097:.
1072:74
1070:.
1042:74
1040:.
1012:74
1010:.
982:74
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952:74
950:.
924:.
914:.
902:.
898:.
870:74
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851:^
822:.
814:.
802:.
751:^
722:^
712:.
668:.
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610:^
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505:.
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1052:.
1048::
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1018::
992:.
988::
962:.
958::
932:.
918::
910::
880:.
876::
830:.
818::
810::
784:.
695:.
678:.
664::
640:.
590:.
578::
63:)
59:(
20:)
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