thiocarbonyl group; energetics and thiocarbonyl compound structure; photoelectron spectroscopy (PES); addition reactions to alkynes and alkenes; cycloreversion reactions; reductive C,S cleavage; desulfurization reactions; coordination chemistry
From Aconcagua in South America to Mount Everest in Asia, from Kilimanjaro in Africa to Vinson Massif in Antarctica, from Mount McKinley in North America to Elbrus in Europe and Mount Kosciusko in Australia: no one had ever scaled all seven summits -- it would be a first, a feat that had eluded the world's best mountaineers.
The greatest mountain systems are the Alps of Europe, the Andes of South America, the Himalayas of Asia, and the Rockies of North America. Notable single peaks in these systems include Mont Blanc (Alps), Aconcagua (Andes), Everest (Himalayas), and Elbert (Rockies). mountain is any landmass on Earth 's surface that rises to a great height in comparison to its surrounding landscape. Mountains usually have more-or-less steep sides meeting in a summit that is much narrower in width than the mountain's base.