functional group

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functional group,

in organic chemistry, group of atoms within a molecule that is responsible for certain properties of the molecule and reactions in which it takes part. Organic compounds are frequently classified according to the functional group or groups they contain. For example, methanol, ethanol, and isopropanol are all classified as alcohols since each contains a functional hydroxyl group.

functional group

[¦fəŋk·shən·əl ′grüp]
(organic chemistry)
An atom or group of atoms, acting as a unit, that has replaced a hydrogen atom in a hydrocarbon molecule and whose presence imparts characteristic properties to this molecule; frequently represented as R‒. Also known as functionality.
References in periodicals archive ?
With respect to the side reaction, FTIR also confirms the existence of other function group, such as carbonyl group (-OH) and hydroxyl group (-C=0) in dissoluble parts.
The association between cognition and gait performance was tested using a multivariate analysis of covariance (ANCOVA) to compare mean DGI and POMA scores at the beginning of rehabilitation between four cognitive function groups as measured by OASIS M0560 (independent, requires prompting, some assistance, and considerable assistance).
The prevalence of hypertension was significantly higher in decreased renal function group compared to control group (p=0.
Second, as mentioned in the limitations, patients with ESRD and those with mild-moderate renal functional impairment were evaluated as impaired renal function group.
This purchase, made through a competitive award process and funded by the American Recovery and Reinvestment Act (ARRA), will be used by NIST's Macromolecular Structure and Function Group to develop novel NMR methods and models for analysis of the molecular structure and dynamics of biological macromolecules and complexes formed by these molecules.
As these users have different mobility needs, the desktop replacement function group also includes ultra-portable platforms.
He will lead the new global function Group Operations, concentrating on enhancing Kontron s capabilities in the areas of Purchasing, Supply Chain and Production, as well as customer focus.
Role-based Workflow -- This new capability proves the foundation for separation of duties between functional groups within the enterprise and for process flow within a function group.
Most recently he has been the Laboratory's Head of Protein Structure and Function Group, and previously at the Institute he was the Acting Head of its Neuropathogenesis Unit in Edinburgh, Scotland.
The function group process helps to improve quality, efficiencies and cost.
Subject to the following function groups (not exhaustive):
The case is not limited to any particular role, division or geography because, as the Court noted, KPMG's "compensation policies are set at high levels and applied across job titles, function groups and geographic locations.