Crystal chemistry of alpha-boron derivatives
Abstract
Assignment of stoichiometry to interstitial compounds is discussed. It is shown that multiple stoichiometries can occur within the same structural framework where more than one type of interstitial opening is available. These principles are used to clarify the confusion which currently exists in the isotypic series of interstitial compounds derived from alpha-boron. With respect to occupancy of interstitial sites three distinct stoichiometries can exist in this isotypic group; namely, B12X2Y (B12X3), B12X2 and B12X. Data are presented on (1) a new form of boron carbide (B12C2), (2) a new α-boron derivative containing interstitial aluminum (B12C2Al), (3) identification and differentiation of two boron subphosphides (B12P2 and B13P2), (4) preparation of boron subarsenide, and (5) relationship between metal dodecaborides and α-boron derivatives.
Artikel in diesem Heft
- Crystal structure of magnesium potassium sulfate hexahydrate MgK2(SO4)2 · 6H2O
- The crystal structure of glauberite, CaNa2(SO4)2
- Beziehungen zwischen den Strukturen der Modifikationen des Platin- und Kupferphthalocyanins und einiger Chlorderivate*
- Über die Epitaxie von Vitamin B12 auf Quarz
- The crystal structure of arsenic tribromide*
- Stacking faults in cronstedtite and other kaolin-type silicates
- Crystal chemistry of alpha-boron derivatives
- The crystal and molecular structure of bis(hydrazine)zinc bis(hydrazincarboxylate-N′,O)
- The crystal and molecular structure of chrysazin
- Hydrogen bonding in o-aminophenol hydrochloride
- Bestimmung der Struktur von Diphenantridylmethan mit der Methode der diffusen Streuung*
- A simple stereographic plotting table
- Elastische und thermoelastische Eigenschaften von CaSO4 · 2H2O (Gips)
- The unit cell and space group of gadolinium molybdate and of scandium tungstate
- An x-ray study of 2,5-dichloro-nitrobenzene
- The space group of anhydrous copper propionate
- An x-ray study of 3-nitro 4-toluidine
- Space group and unit-cell dimensions of 7-chloro, 4-methyl coumarin
- Crystal structures.
- Exhibition of Photographs of Crystallographic Interest
Artikel in diesem Heft
- Crystal structure of magnesium potassium sulfate hexahydrate MgK2(SO4)2 · 6H2O
- The crystal structure of glauberite, CaNa2(SO4)2
- Beziehungen zwischen den Strukturen der Modifikationen des Platin- und Kupferphthalocyanins und einiger Chlorderivate*
- Über die Epitaxie von Vitamin B12 auf Quarz
- The crystal structure of arsenic tribromide*
- Stacking faults in cronstedtite and other kaolin-type silicates
- Crystal chemistry of alpha-boron derivatives
- The crystal and molecular structure of bis(hydrazine)zinc bis(hydrazincarboxylate-N′,O)
- The crystal and molecular structure of chrysazin
- Hydrogen bonding in o-aminophenol hydrochloride
- Bestimmung der Struktur von Diphenantridylmethan mit der Methode der diffusen Streuung*
- A simple stereographic plotting table
- Elastische und thermoelastische Eigenschaften von CaSO4 · 2H2O (Gips)
- The unit cell and space group of gadolinium molybdate and of scandium tungstate
- An x-ray study of 2,5-dichloro-nitrobenzene
- The space group of anhydrous copper propionate
- An x-ray study of 3-nitro 4-toluidine
- Space group and unit-cell dimensions of 7-chloro, 4-methyl coumarin
- Crystal structures.
- Exhibition of Photographs of Crystallographic Interest
