page_title: Coordination sphere
hierarchical_section_title: Coordination sphere
context_page_description: In coordination chemistry, the first coordination sphere refers to the array of molecules and ions directly attached to the central metal atom. The second coordination sphere consists of molecules and ions that attached in various ways to the first coordination sphere.
context_section_description: In coordination chemistry, the first coordination sphere refers to the array of molecules and ions (the ligands) directly attached to the central metal atom. The second coordination sphere consists of molecules and ions that attached in various ways to the first coordination sphere.
caption: cis-[CoCl2(NH3)4]+ 
  The NH3 and Cl groups form a coordination sphere around the central cobalt ion.
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