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锰离子和钴离子的离子半径各是多少啊？参考文献出自何处？已有4人参与
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| 请教锰离子正二价，正三价，正四价，和钴离子正二价，正三价的离子半径各是多少啊？若有具体数值，可否有参考文献呢？ |
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具体可以查看 http://www.webelements.com/webel ... /text/Mn/radii.html Radii There are several ways to define radius for atoms and ions. Follow the appropriate hyperlinks for literature references and definitions of each type of radius. All values of radii are given in pm (picometres, or picometers in USA). Conversion factors are: 1 pm = 1 x 10-12 metre (meter) 100 pm = 1 Ångstrom 1000 pm = 1 nanometre (nm, nanometer) MnMn distance in the element One measure of size is the element-element distance within the element and this length is given here. View... Interactive Cityscape Cylinders Line Balls Bar Intensity Bond length in MnMn [/pm]: 273.1 Neutral radii The size of neutral atoms depends upon the way in which the measurement is made and the environment. Follow the appropriate hyperlinks for definitions of each radius type. The term "atomic radius" is not particularly helpful although its use is widespread. The problem is its meaning, which is clearly very different in different sources and books. Two values are given here, one is based upon calculations and the other upon observation - follow the appropriate link for further details. View... Interactive Cityscape Cylinders Line Balls Bar Intensity Atomic radius (empirical) [/pm]: 140 View... Interactive Cityscape Cylinders Line Balls Bar Intensity Atomic radius (calculated) [/pm]: 161 View... Interactive Cityscape Cylinders Line Balls Bar Intensity Covalent radius (empirical) [/pm]: 139 View... Interactive Cityscape Cylinders Line Balls Bar Intensity van der Waals radius [/pm]: no information Ionic radii This table gives some ionic radii. In this table, geometry refers to the arrangment of the ion's nearest neighbours. Size does depend upon geometry and environment. For electronic configurations, where it matters, the values given for octahedral species are low spin unless stated to be high spin. The terms low spin and high spin refer to the electronic configurations of particular geomtries of certain d-block metal ions. Further information is available in inorganic chemistry textbooks, usually at Level 1 or First Year University level. For definitions of ionic radius and further information, follow the hypertext link. Ion Coordination type Radius / pm Mn(II) 4-coordinate, tetrahedral 80 Mn(IV) 4-coordinate, tetrahedral 53 Mn(V) 4-coordinate, tetrahedral 47 Mn(VI) 4-coordinate, tetrahedral 39.5 Mn(VII) 4-coordinate, tetrahedral 39 Mn(II) 6-coordinate, octahedral 81 Mn(II) 6-coordinate, octahedral, high spin 97.0 Mn(III) 6-coordinate, octahedral 72 Mn(III) 6-coordinate, octahedral, high spin 78.5 Mn(IV) 6-coordinate, octahedral 67.0 Mn(VII) 6-coordinate, octahedral 60 Mn(II) 8-coordinate 110 Pauling ionic radii Ion Pauling radius / pm View... Interactive Cityscape Cylinders Line Balls Bar Intensity Mn(I) 75 Mn(VII) 46 http://www.webelements.com/webel ... /text/Co/radii.html Radii There are several ways to define radius for atoms and ions. Follow the appropriate hyperlinks for literature references and definitions of each type of radius. All values of radii are given in pm (picometres, or picometers in USA). Conversion factors are: 1 pm = 1 x 10-12 metre (meter) 100 pm = 1 Ångstrom 1000 pm = 1 nanometre (nm, nanometer) CoCo distance in the element One measure of size is the element-element distance within the element and this length is given here. View... Interactive Cityscape Cylinders Line Balls Bar Intensity Bond length in CoCo [/pm]: 250.6 Neutral radii The size of neutral atoms depends upon the way in which the measurement is made and the environment. Follow the appropriate hyperlinks for definitions of each radius type. The term "atomic radius" is not particularly helpful although its use is widespread. The problem is its meaning, which is clearly very different in different sources and books. Two values are given here, one is based upon calculations and the other upon observation - follow the appropriate link for further details. View... Interactive Cityscape Cylinders Line Balls Bar Intensity Atomic radius (empirical) [/pm]: 135 View... Interactive Cityscape Cylinders Line Balls Bar Intensity Atomic radius (calculated) [/pm]: 152 View... Interactive Cityscape Cylinders Line Balls Bar Intensity Covalent radius (empirical) [/pm]: 126 View... Interactive Cityscape Cylinders Line Balls Bar Intensity van der Waals radius [/pm]: no information Ionic radii This table gives some ionic radii. In this table, geometry refers to the arrangment of the ion's nearest neighbours. Size does depend upon geometry and environment. For electronic configurations, where it matters, the values given for octahedral species are low spin unless stated to be high spin. The terms low spin and high spin refer to the electronic configurations of particular geomtries of certain d-block metal ions. Further information is available in inorganic chemistry textbooks, usually at Level 1 or First Year University level. For definitions of ionic radius and further information, follow the hypertext link. Ion Coordination type Radius / pm Co(II) 4-coordinate, tetrahedral 72 Co(IV) 4-coordinate, tetrahedral 54 Co(II) 6-coordinate, octahedral 79 Co(II) 6-coordinate, octahedral, high spin 88.5 Co(III) 6-coordinate, octahedral 68.5 Co(III) 6-coordinate, octahedral, high spin 75 Co(IV) 6-coordinate, octahedral, high spin 67 Co(II) 8-coordinate 104 Pauling ionic radii Ion Pauling radius / pm View... Interactive Cityscape Cylinders Line Balls Bar Intensity Co(I) no information |
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