CĂRȚI ÎN ENGLEZĂ ÎN LEGĂTURĂ CU «HEMIHEDRY»
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hemihedry în următoarea selecție bibliografică. Cărți în legătură cu
hemihedry și extrase din aceasta pentru a furniza contextul de întrebuințare al acestuia în literatura Engleză.
1
Smithells Metals Reference Book
Table 5.2 POINT-GROUP NOTATION (SCHOENFLIES) Crystal class Schoenflies
System Class no. symbol Schoenflies Dana Miers Triclinic 1 C1 Hemihedry
Asymmetric Asymmetric 2 Ci Holohedry Normal Central Monoclinic 3 Cs = Ch1 ...
William F. Gale, Terry C. Totemeier,
2003
2
Early Days of X-ray Crystallography
The origin of hemihedry as well as that of the physical properties of some crystals
is to be found in the fact that a change in the symmetry of the inner structure
entails a change in the external symmetry of the crystal: the physical properties of
...
In fact, quartz was the first substance in which optical activity had been found [18],
and in 1820, the English scientist, J.W.F. Herschel made the correlation between
the left-handed and right-handed hemihedry of quartz crystals that were ...
Kenneth W. Busch, Marianna A. Busch,
2011
4
The Development of Chemical Principles
The tartrate salts, like quartz, would, under appropriate conditions, exhibit
hemihedry. That is, it was possible to isolate crystals which were not symmetrical
on reflection in a mirror, but had non- equivalent mirror images. Moreover, all the
...
Cooper Harold Langford, Ralph Alonzo Beebe,
1995
5
a history of the concept of valency
the still speculative view of a possible inter-relation between the hemihedry and
the rotatory power of the tartrates my first thoughts were to see whether other
crystallizable and active organic compounds had hemihedral crystal forms. I met
with ...
6
A History of the Concept of Valency to 1930
the still speculative view of a possible inter-relation between the hemihedry and
the rotatory power of the tartrates my first thoughts were to see whether other
crystallizable and active organic compounds had hemihedral crystal forms. I met
with ...
7
The Analytical Expression of the Results of the Theory of ...
Symbol Table I. 21ass of Symmetrv A fl S<momtmjma I. Triclinic System Dana
Groth Ci 1C Hemihedry Asymmetric Asymmetric pedial 82 . □c, ICi Holohedry II.
Monoclinic System Normal Pinacoidal c. 2c Hemihedry Clinohedrol Domatic c2
2C ...
Ralph Walter Graystone Wyckoff,
1930
8
Science and Industry in the Nineteenth Century
... PASTEUR—Chemical CANlZZARO—Moleresolution cular weights I850 w DE
LA PROVOSTAYE- \ Crystallography of A 1 €\ a I 51:35am \ DELAFOSSE- heory
HANKEL—Pyroelectricity BlOT-Optical inactivity of hemihedry of Seignette salt of
...
9
Drug Stereochemistry: Analytical Methods and Pharmacology, ...
When the elementary atoms of organic products are grouped asymmetrically, the
crystalline form of the substance manifests this molecular asymmetry in
nonsuperposable hemihedry. The cause of this hemihedry is thus recognised. 2).
10
Carnegie Institution of Washington Publication
Ci Hemihedry Asymmetric Asymmetric pedial 1 2. C-Si-Ci Holohedry Normal
Pinacoidal 2 11. Monoclinio system. 3. Ci-Ch-C. Hemihedry Clinohedral Domatic
1 4. C. Hemimorphic hemihedry Hemimorphic Monoclinio sphenoidal 1 5C> ...