NICODOM IR Inorganics Volume
II - Boron Compounds
Volume 2 of the infrared spectral library book
"NICODOM IR Inorganics" presents 296 FTIR spectra of boron
compounds (spectral range 4000-400cm-1). The spectra are shown in transmittance
scale (%T). The source of the samples was the Institute of Inorganic Chemistry
of Czech Academy of Science in Rez near Praha, Czech Republic.
All substances were synthesized on this institute.
The structure and purity of the compounds was verified by common analytical
methods, mostly NMR, mass spectroscopy and X-ray analysis. The samples were not
additionally purified or dried before collecting, they were taken as they were
available from the institute stock.
Boron chemistry forms a bridge between organic
chemistry, inorganic chemistry and the chemistry of metals. After the discovery
of the first boranes in 1912, these compounds were considered to be of only
academic importance. The first borane boom started in 1941, when the use of volatile
uranium borohydride was proposed for the separation of uranium isotopes. The
second boom for cage boranes started in 1946 when liquid (B5H9) and solid
(B10H14) boranes were believed to be most powerful rocket fuels. In the next
decades further systematic but less well-supported research continued.
In presented collection FTIR spectra of different
types of boron compounds are shown. From a high number of available compounds
we took only solid samples which are considered not to decompose on the air or
in KBr pellets with the aim to build a representative collection of this type
of compounds.
The boron or combined skeletons of the various
polyhedra are designated by the Greek terms "closo" (closed),
"nido" (nestlike), "arachno" (weblike) and
"hypho" (netlike); the order indicates increasing openness.
"Closo" molecules have a complete closed polyhedron with triangular
faces. "Nido" molecules have nonclosed structures, they can be
considered to arise by removing the highest connected vertex in a closo structure.
"Arachno" molecules are obtained by removing from the nido cluster
the highest connected atom of the opened face. "Hypho" molecules are
even more opened.
Borates are anions of boranes usually stabilised by
large cations. Carbaboranes and carbaborates are boranes or borates, where one
or more Boron atoms from the skeleton are substituted by carbon atoms. Further
presented derivatives are thiaboranes (include S-atoms in skeleton), azaboranes
(include N-atoms in skeleton) and metallaboranes or carbametallaboranes
(include metal atoms in skeleton).
This library is available
as printed book or scanned book (*.pdf file).
To download the list of
spectra from this library, to download a free demo library compatible with your
software, to check the format compatibility as well as for pricelist, ordering
info and information about all NICODOM IR/NIR Libraries and other NICODOM
products please visit our webpage.
Download list of spectra for this library.
NICODOM IR Inorganics, 1803 IR spectra of inorganics
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