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Direct Computation of Madelung Constants

Mirko Mirnik ; Laboratory of Physical Chemistry, Faculty of Sciences, University of Zagreb, Zagreb, Croatia, Yugoslavia


Puni tekst: engleski pdf 3.544 Kb

str. 423-428

preuzimanja: 835

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Sažetak

An algorithm is proposed by which the Madelung constants can be computed by direct summation with any precision given by that of the computer used. The necessary program can be made very simple, requiring acceptable computation times due to a small number of necessary lattice points. The algorithm is based on the calculation of arithmetical means of higher order of partial sums of infinite alternating convergent series equal to the Madelung constants. As an example, the Madelung constant of cubic lattice was computed using only 21, 18, 16 members in the axes, coordination planes and the space volume respectively. The obtained value was MC= 1.74756460 + 6, with an estimated error of -5 X 10-9< 6< 1 x 10-8•

Ključne riječi

Hrčak ID:

177370

URI

https://hrcak.srce.hr/177370

Datum izdavanja:

20.6.1986.

Posjeta: 1.144 *