InternationalReciprocal spaceTables for Crystallography Volume B Edited by U. Shmueli © International Union of Crystallography 2006 |
International Tables for Crystallography (2006). Vol. B, ch. 2.2, pp. 227-228
## Section 2.2.7. Scheme of procedure for phase determination |

A traditional procedure for phase assignment may be schematically presented as follows:

### References

Burla, M. C., Cascarano, G., Giacovazzo, C., Nunzi, A. & Polidori, G. (1987).*A weighting scheme for tangent formula development. III. The weighting scheme of the SIR program. Acta Cryst.*A

**43**, 370–374.

Cascarano, G., Giacovazzo, C., Burla, M. C., Nunzi, A. & Polidori, G. (1984).

*The distribution of*.

*Acta Cryst.*A

**40**, 389–394.

Cascarano, G., Giacovazzo, C. & Viterbo, D. (1987).

*Figures of merit in direct methods: a new point of view. Acta Cryst.*A

**43**, 22–29.

Cochran, W. & Douglas, A. S. (1957).

*The use of a high-speed digital computer for the direct determination of crystal structure. II. Proc. R. Soc. London Ser. A*,

**243**, 281–288.

De Titta, G. T., Edmonds, J. W., Langs, D. A. & Hauptman, H. (1975).

*Use of the negative quartet cosine invariants as a phasing figure of merit: NQEST. Acta Cryst.*A

**31**, 472–479.

Debaerdemaeker, T., Tate, C. & Woolfson, M. M. (1985).

*On the application of phase relationships to complex structures. XXIV. The Sayre tangent formula. Acta Cryst.*A

**41**, 286–290.

Declercq, J.-P., Germain, G., Main, P. & Woolfson, M. M. (1973).

*On the application of phase relationships to complex structures. V. Finding the solution. Acta Cryst.*A

**29**, 231–234.

Germain, G., Main, P. & Woolfson, M. M. (1970).

*On the application of phase relationships to complex structures. II. Getting a good start. Acta Cryst.*B

**26**, 274–285.

Germain, G., Main, P. & Woolfson, M. M. (1971).

*The application of phase relationships to complex structures. III. The optimum use of phase relationships. Acta Cryst.*A

**27**, 368–376.

Giacovazzo, C. (1976).

*A probabilistic theory of the cosine invariant*.

*Acta Cryst.*A

**32**, 91–99.

Giacovazzo, C. (1979

*b*).

*A theoretical weighting scheme for tangent-formula development and refinement and Fourier synthesis. Acta Cryst.*A

**35**, 757–764.

Hull, S. E. & Irwin, M. J. (1978).

*On the application of phase relationships to complex structures. XIV. The additional use of statistical information in tangent-formula refinement. Acta Cryst.*A

**34**, 863–870.

Karle, J. & Karle, I. L. (1966).

*The symbolic addition procedure for phase determination for centrosymmetric and non-centrosymmetric crystals. Acta Cryst.*

**21**, 849–859.

Koch, M. H. J. (1974).

*On the application of phase relationships to complex structures. IV. Automatic interpretation of electron-density maps for organic structures. Acta Cryst.*A

**30**, 67–70.

Main, P. & Hull, S. E. (1978).

*The recognition of molecular fragments in E maps and electron density maps. Acta Cryst.*A

**34**, 353–361.

Van der Putten, N. & Schenk, H. (1977).

*On the conditional probability of quintets. Acta Cryst.*A

**33**, 856–858.