This is IboView [v20211019] by Gerald Knizia.

Infomation and updates:

- http://www.iboview.org

Special thanks go to:

- Johannes E. M. N. Klein and Laura Nunes dos Santos Comprido for many useful comments and examples, and for adopting the program already in its infant stage 8)

- Peter Knowles and Andreas Köhn for their help and boundless patience with getting it working on MacOS.

References:

- G Knizia; Intrinsic atomic orbitals: An unbiased bridge between quantum theory and chemical concepts J. Chem. Theory Comput. 9, 4834 (2013) DOI: 10.1021/ct400687b

  (Publications employing IAOs or IBOs should cite this.)

- G Knizia and JEMN Klein; Electron flow in reaction mechanisms---revealed from first principles Angew. Chem. Int. Ed. 54, 5518 (2015) DOI: 10.1002/anie.201410637

  (Publications employing IboView should cite this, especially if used to trace reaction mechanisms.)

Funding:

- The IboView project was initially funded via ERC Advanced Grant 320723 (ASES).