The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2013

• Comprehensive summary of 2013 research involving carbene complexes and carbyne complexes.
• 139 references to reviews/minireviews/comments.
• 692 primary references that focus on olefin metathesis reactions initiated by carbene complexes or metathesis catalysts that are carbene complexes.
• 409 primary references that focus on carbene complexes.
• 39 primary references that focus on carbyne complexes.

This is a review of papers published in the year 2013 that focus on the synthesis, reactivity, or properties of compounds containing a carbon-transition metal double or triple bond.