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Modular Chemistry: the First Steps In recent years, there has been
increasing interest among chemists, physicists, materials
scientists, biologists, engineers, and others in the assembly of
well defmed, relatively large functional structures from repetitive
units that themselves are molecules of some complexity. Using the
dictionary defmition of a module (a detachable section,
compartment, or unit with a specific purpose or function, and in
electronics, a compact assembly functioning as a component of a
larger unit) [1], we feel that this newly emerging field of
endeavor could be called "modular chemistry" [2]. The NATO Advanced
Research Workshop on Modular Chemistry that was held on September 9
to 12, 1995, at Aspen Lodge near Estes Park, Colorado, was meant to
bring together prominent contributors to modular chemistry as it is
being born, and to examine the associated birth pangs. It was
concluded that although real, these are not nearly as bad as giving
birth to a hedgehog tail first, and that the ultimate rewards were
likely to be far more satisfying in terms of new ideas and enabling
methodology. The level of excitement about the possibilities that
are opening up for modular chemists, and also the challenge
involved, are perhaps best documented by noting that the planned
discussion periods at the workshop were as long as the oral
presentation periods, and yet, each discussion ran over the
allocated time.
Modular chemistry involves the assembly of well defined, relatively
large functional structures from repetitive units that themselves
are molecules of some complexity. The two most visible sources
underlying modular chemistry are supramolecular ("self assembly")
chemistry and polymer chemistry, but the appeal of the field is to
crystallographers, solid-state chemists and physicists,
small-molecule organic synthetic chemists, inorganic coordination
or main group chemists, photochemists and physicists, surface
chemists, electrochemists, carbon or semiconductor cluster
chemists, biochemists, biomimetic chemists, biomineral chemists,
materials scientists, microscopists and theoreticians, those
working in "molecular electronics", nonlinear optics, and with
Langmuir-Blodgett or self-assembly monolayers, or liquid crystals.
The book captures the interdisciplinary nature of the subject,
concentrating on up-to-date results. The result is a peer-reviewed
volume on where modular chemists stand, where they are going, and
what they propose to do when they get there.
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