ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 11
    Electronic Resource
    Electronic Resource
    A technique for the rigid mounting of crystals in X-ray diffractometry (1971)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 4 (1971), S. 400-400 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889871007301
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 12
    Electronic Resource
    Electronic Resource
    The significance of a stable crystal mounting in precision integrated X-ray intensity measurements (1970)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 26 (1970), S. 456-457 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Minute but relatively rapid changes of crystal orientation can lead to significant errors in integrated intensity measurements.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S056773947000116X
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 13
    Electronic Resource
    Electronic Resource
    High-flux micro-resonators for X-ray and γ-ray lasers (1978)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 34 (1978), S. 1028-1029 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: It is shown that a small single crystal may resonate at a wide range of X- and γ-ray frequencies. Such a resonator should produce roughly 1011 times greater radiative flux density per photon than previous designs.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567739478002120
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 14
    Electronic Resource
    Electronic Resource
    Simplification of automatic crystal orientation and unit-cell determination by the use of white-radiation streaks (1971)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 4 (1971), S. 172-172 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: By looking for white-radiation streaks rather than reflexions due to characteristic radiation, the systematic search for scattering vectors is reduced from a three- to a two-parameter problem.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889871006563
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 15
    Electronic Resource
    Electronic Resource
    A device for in situ α-irradiation of diffractometer mounted single crystals (1971)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 4 (1971), S. 331-332 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Notes: A diffractometer-mounted device for the controlled α-irradiation of the single crystals is described.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889871007118
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 16
    Electronic Resource
    Electronic Resource
    A source of harmonic-free X-rays (1976)
    Copenhagen : International Union of Crystallography (IUCr)
    Applied crystallography online 9 (1976), S. 511-511 
    Details
    ISSN: 1600-5767
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0021889876012107
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 17
    Electronic Resource
    Electronic Resource
    An experimental investigation of the truncation errors incurred in single-crystal diffractometry (1977)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 33 (1977), S. 438-440 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: Integrated intensity measurements depend on the wavelength range of integration. In conventional X- ray measurement procedures this range decreases with increasing diffraction angle, which results in a systematic intensity error for which normally no correction is applied. This paper presents an experimental investigation of this error for standard integration scans. A correction formula is derived and tested, and it is shown that failure to take account of this error has led to spuriously high temperature factors in most X-ray structure analyses.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567739477001144
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 18
    Electronic Resource
    Electronic Resource
    The ω/θ scan – an efficient X-ray monochromation technique (1977)
    [S.l.] : International Union of Crystallography (IUCr)
    Acta crystallographica 33 (1977), S. 987-992 
    Details
    ISSN: 1600-5724
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Notes: It is possible to obtain essentially monochromatic spot profiles with a single-crystal diffractometer by using the specimen crystal as a dispersive element, and by carrying out an ω/θ integration scan with restricted detector slits. An expression for the detector slit width is derived and the technique is tested experimentally. It appears that there is little difficulty in monochromating to ± 1% of the nominal X-ray wavelength as a routine procedure. It is also quite straightforward to work with the Kα1 line alone for medium and high-angle reflexions. The range of wavelengths detected can be made independent of diffraction angle; integrated intensity errors due to variable spectral response can therefore be effectively eliminated. This technique facilitates a higher and more constant degree of X-ray monochromation than the pyrolytic-graphite monochromator or the solid-state detector.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567739477002356
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 19
    Electronic Resource
    Electronic Resource
    Crystal structure ofp-toluidinium bifluoride (1971)
    Springer
    Journal of chemical crystallography 1 (1971), S. 311-318 
    Details
    ISSN: 1572-8854
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract p-toluidinium bifluoride crystallizes in the orthorhombic space groupPbca, witha = 7·161,b = 18·405,c = 11·824 Å andZ= 8. The structure was solved by direct methods from X-ray counter data measured with CuKα. radiation, and a finalR index of 0·052 was obtained for the 642 observed terms of the 1480 possible. Thep-toluidine molecule is fully protonated and the methyl group is either disordered, librating extensively or freely rotating. In the HF2 − ion the H atom is apparently centrally situated between the two fluorine atoms, and is obviously very delocalized; the F-H-F distance is 2·276 ± 0·005 Å. The structure consists of alternate layers ofp-toluidinium and hydrogenbifluoride ions with the latter hydrogen-bonded to the amine groupings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01200805
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
  • 20
    Electronic Resource
    Electronic Resource
    Crystal and molecular structure of the conjugated dienalp-Cl-C6H4-N(Ac)=CH-C(OAc)-CH=CH-CHO (1974)
    Springer
    Journal of chemical crystallography 4 (1974), S. 141-148 
    Details
    ISSN: 1572-8854
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geosciences , Physics
    Notes: Abstract Crystals of N,O-diacetyl-5-p-chloranilino-4-hydroxypenta-2,4-dienal, the degradation product from a Stenhouse salt, belong to the monoclinic space groupP21/c witha = 10.845,b = 17.607,c = 8.056 Å, β = 95.87 ° andZ = 4. The structure was solved by the heavy-atom method from intensity data measured out to 1.14 Å−1 with CuKα radiation. Hydrogen atoms were not located. A finalR of 0.098 for the 549 observed terms was attained. The molecule is in thetrans-trans conformation, and the non-hydrogen atoms in the pentadienal chain and N-acetyl group are almost co-planar. Thep-chloraniline and O-acetyl groups lie on the same side of the pentadienal skeleton, and their respective planes are approximately parallel and at right angles to the plane of the chain. The molecules in the crystal structure are held together by van der Waals' interactions.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01197909
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    Paper (German National Licenses)
    Fulltext
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...