Skip to main content

Principle of minimum structural change

According to this oversimplified principle, chemical species do not isomerize in the course of a transformation, e.g. substitution, or the change of a functional group of a chemical species into a different functional group is not expected to involve the making or breaking of more than the minimum number of bonds required to effect that transformation. For example, any new substituents are expected to enter the precise positions previously occupied by displaced groups.[1]

Molecular rearrangements[2]  violates the so-called 'principle of minimum structural change'.

References: 

  1. IUPAC Goldbook, doi:10.1351/goldbook.M03997
  2. The term is traditionally applied to any reaction that involves a change of connectivity (sometimes including hydrogen)
Labels:

Comments

Post a Comment

Popular posts from this blog

The scientific method is a systematic and logical approach to understanding the natural world through empirical observation, experimentation, and the formulation and testing of hypotheses and theories. The scientific method is a step-by-step approach in studying natural phenomena and establishing laws which govern these phenomena. Any scientific method involves the following general features. (i) Systematic observation (ii) Controlled experimentation (iii) Qualitative and quantitative reasoning (iv) Mathematical modeling (v) Prediction and verification or falsification of theories (i) Systematic observation: Scientific inquiry begins with careful and methodical observation of natural phenomena. This involves gathering data through various means, such as direct observation, measurement, or using specialized instruments, to collect qualitative and quantitative information about the phenomenon under study. (ii) Controlled experimentation: After making observations, scientists design and c...
Post a Comment
Read more

The duty of every citizen of India to develop scientific temper

According to part IV Article 51A (h) of Indian Constitution “It shall be the duty of every citizen of India to develop scientific temper, humanism and spirit of inquiry and reform’’. This is the aim of our Science Education. The directive principle mentioned in Article 51A(h) of the Indian Constitution, which states that " It shall be the duty of every citizen of India to develop scientific temper, humanism and spirit of inquiry and reform ," is indeed a guiding principle for the aim of science education in India. This constitutional provision highlights the importance of inculcating certain values and attitudes among the citizens of India, which are crucial for the progress and development of the nation. Let's break down the key elements of this directive and how they relate to the aims of science education: 1. Develop scientific temper:    - Science education should foster a scientific temper, which involves cultivating a rational, objective, and evidence-based approac...
Post a Comment
Read more