Crossword puzzle - ACS Publications - American Chemical Society

J. Chem. Educ. , 1957, 34 (6), p 300. DOI: 10.1021/ed034p300. Publication Date: June 1957. Cite this:J. Chem. Educ. 34, 6, 300- ...
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CROSSWORD PUZZLE

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(See p . 306 for solution)

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distance and Av. Thus a direct relation between Av and bond energy can be obtained. Lippincott and Schroeder are careful to point out that their model is not intended as a complete one, for there are important aspects of infrared absorption which it does not explain. But they are optimistic that their model will be applicable to hydrogen bonding involving other atoms besides oxygen, and that it can be modified for liquid systems. Nevertheless, this limited model constitutes a definite advance from qualitative to quantitative theoretical interpretation. I t emphasizes the need of modifying the commonly held belief in an electrostatic model, in favor of quantum mechanical formulations, iaorder that our notions of the hydrogen bond can be improved. Lord and Merrifield ( I k ) , believe that an explanation of the spectroscopic properties of the hydrogen bond undoubtedly ill require a quantum mechanical model.

(8) BADGER, R. M., A N D S. H. BAUER,J. Chem. Phys., 5, 605608 (1937). R. M., AND S. H. BAUER,J. Chem. Phys., 5, 851 (9) BADGER,

R. M., J. Chem. Phys., 8,288 (1940). (10) BADGER, L. N., op. eit., pp. 260-61; M. M. DAVIES, (11) FERGUSON, Ann. Repts. Chem. Soe. (London), 43, 19 (1946). (12) DoNonuE, J., J. Phys. Chem., 56, 502-10 (1952). R. E., AND M. PARASOL, J. Chem. Phys., 20, 1487 (13) RUNDLE,

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(14) LORD,R. C., AND R. E. MERRIFIELD, J. Chem. Phys., 21, 166 (1953). K., M. MARGOSEES, A N D R. E. RUNDLE, J. (15) NAKAMOTO, Am. Chem. Soc.. 77.6480 (1955). (16) PIMENTEL, G. C., ~~ND'c. H. S E D E ~ O L M , J. Chem. Phys., 24, 639 fl!Xfi). J. Chem. Phys., 23, (17) L&N&TT,'E. R., AND R. SCHROEDER, 1099-1106 (1955).

LITERATURE CITED (1) JONES, E. V., J. CHEM.EDUC.,22, 76 (1945); R. W. TAFT, JR., AND H.'H. SISLER,ibid., 24, 175 (1947); M. GORMAN, ibid., 33, 468 (1956). L. N., "Electronic Structures of Organic Mole(2) FERGUSON, cules," Prentice-Hall, New York, 1952, pp. 229-36 and 251-68; L. KELLNER,Repts. Pmg. Phys., 15, 1-22 AND C. SA ORFY in "Technique or (1952); R. N. JONES Oreanie Chemistrv. " , Val,-IX. %mica1 Anolications of Spectroscopy," W. WEST, Editor, Interscience Publishers, New York, 1956, Chap. IV. (3) EWING,G. W., "Instrumental Methods of Chemical Analysis," McGraw-Hill Book Co., Inc., New York, 1954, pp.

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(4) J o s ~ s R. , N.,AND C. SANDORFY, op. eit., pp. 256-87 and 294-331. (51 Hr;ccrNs. RZ. L.. J. Am. Chem. Soe.. 53.3190 (1931): G. N.

p. 109. (6) HILBERT,G. E., 0.R. WULP,S. B. HENDRICKS, AND U. LIDDELL, J. Am. Chem. Soe., 58, 548-55 (1936). (7) PAPLING,L., "Nature of the Chemical Bond," Cornell University Press, Ithaca, 1940, pp. 316-27.

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