GEOMETRIC AND CHEMICAL COORDINATION

被引：23

作者：

ALIG, H ^{[1
]}

TROMEL, M ^{[1
]}

机构：

[1] UNIV FRANKFURT,INST ANORGAN CHEM,NIEDERURSELER HANG,W-6000 FRANKFURT 50,GERMANY

来源：

ZEITSCHRIFT FUR KRISTALLOGRAPHIE | 1992年 / 201卷 / 3-4期

关键词：

GEOMETRICAL COORDINATION; CHEMICAL COORDINATION; COORDINATION NUMBER; WIRKUNGSBEREICH; WEAK BONDS; MOLECULAR COMPOUNDS; SECONDARY BONDS; CARBON DIOXIDE; CALCITE TYPE CARBONATES; DOLOMITE;

D O I：

10.1524/zkri.1992.201.3-4.213

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Two geometrical concepts of coordination (Frank and Kasper 1958 and Ruban 1985) are identical with Niggli's (1927) concept of "Wirkungsbereich". The geometrical coordination number can be reduced to a chemical coordination number which includes the number of weak bonds in the case of irregular coordinations or molecular compounds. Bond lengths in solid CO2, calcite, magnesite, rhodochrosite, siderite, smithonite and dolomite are discussed. Exceptionally short C-O-bonds in calcite are due to the large distance between carbonate layers which is caused by the larger ionic radius of Ca2+.

引用

页码：213 / 222

页数：10

共 27 条

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