<xsd:simpleType name="reactionTypeType" id="st.reactionTypeType">
<xsd:annotation>
<xsd:documentation>
<h:div class="summary">The semantic type of the reaction.</h:div>
<h:div>
<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:restriction base="xsd:string">
<xsd:enumeration value="chainReaction">
<xsd:annotation>
<xsd:documentation>
<h:div>
<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>
<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>
<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>
<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:enumeration value="other">
<xsd:annotation>
<xsd:documentation>
<h:div class="summary">A value not in the controlled vocabulary - use dictRef to add further information.</h:div>
</xsd:documentation>
</xsd:annotation>
</xsd:enumeration>
</xsd:restriction>
</xsd:simpleType> |