Isomerism is the phenomenon whereby certain compounds, with the same molecular formula, exist in different forms owing to their different organisations of atoms. The concept of isomerism illustrates the fundamental importance of molecular structure and shape in organic chemistry.
By signing the nuclear deal, Iran has given up that nuclear umbrella for as long as two decades and made the case for the United States to further strengthen the conventional military capacities of Israel and the GCC.
President Obama on Iran nuclear agreement: 'It is a good deal'. Apr. President Barack Obama speaks in the Rose Garden of the White House in Washington, Thursday, April 2, 2015, about the breakthrough in the Iranian nuclear talks. AP/Susan Walsh. President Barack Obama just gave a speech reacting to the framework for a nuclear deal with Iran that was reached by negotiators on Thursday. Today, after many months of tough, principled diplomacy, we have achieved the framework for that deal. And it is a good deal, Obama said.