<xsd:simpleType name="reactionTypeType" id="st.reactionTypeType">
<xsd:annotation>
<xsd:documentation>
<h:div class="summary" xmlns:h="http://www.w3.org/1999/xhtml">The semantic type of the reaction.</h:div>
<h:div xmlns:h="http://www.w3.org/1999/xhtml">
<h:p>This is provided for machine-understanding of the topology or logic of the reaction steps and components (i.e. not for a general classification for which <h:tt>label</h:tt> is more appropriate.)</h:p>
<h:p>Semantics are semi-controlled. Some terms are appropriate to multistep reactions, and can be used with or without explicit steps.</h:p>
</h:div>
</xsd:documentation>
</xsd:annotation>
<xsd:union>
<xsd:simpleType>
<xsd:restriction base="xsd:string">
<xsd:enumeration value="chainReaction">
<xsd:annotation>
<xsd:documentation>
<h:div xmlns:h="http://www.w3.org/1999/xhtml">
<h:p>A reaction in which one or more reactive reaction intermediates (frequently radicals) are continuously regenerated, usually through a repetitive cycle of elementary steps (the 'propagation step') (IUPAC GoldBook).</h:p>
</h:div>
</xsd:documentation>
</xsd:annotation>
</xsd:enumeration>
<xsd:enumeration value="initiation">
<xsd:annotation>
<xsd:documentation>
<h:div xmlns:h="http://www.w3.org/1999/xhtml">
<h:p>
A reaction or process generating free radicals (or some other reactive
reaction intermediates) which then induce a chain reaction. For example,
in the chlorination of alkanes by a radical mechanism the initiation step is
the dissociation of molecular chlorine.
IUPAC Compendium of Chemical Terminology 2nd Edition (1997).</h:p>
</h:div>
</xsd:documentation>
</xsd:annotation>
</xsd:enumeration>
<xsd:enumeration value="termination">
<xsd:annotation>
<xsd:documentation>
<h:div xmlns:h="http://www.w3.org/1999/xhtml">
<h:p>The steps in a chain reaction in which reactive intermediates are destroyed
or rendered inactive, thus ending the chain.
IUPAC Compendium of Chemical Terminology 2nd Edition (1997)
.</h:p>
</h:div>
</xsd:documentation>
</xsd:annotation>
</xsd:enumeration>
<xsd:enumeration value="reversible">
<xsd:annotation>
<xsd:documentation>
<h:div xmlns:h="http://www.w3.org/1999/xhtml">
<h:p>A reaction which can proceed in the forward direction as readily as in the reverse direction (IUPAC GoldBook).</h:p>
</h:div>
</xsd:documentation>
</xsd:annotation>
</xsd:enumeration>
</xsd:restriction>
</xsd:simpleType>
<xsd:simpleType>
<xsd:restriction base="namespaceRefType" />
</xsd:simpleType>
</xsd:union>
</xsd:simpleType>
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XSD Schema Diagram:
