1. Physics Department, Universidade Federal de Minas Gerais, Belo Horizonte, 31270-901, Brazil
2. School of Physical Sciences, University of Kent, Canterbury CT2 7NZ, United Kingdom
3. Diamond Light Source, Ltd., Harwell Science & Innovation Campus, Didcot OX11 0DE, United Kingdom
4. Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695, United States
5. Department of Chemistry, University of Bath, Bath BA2 7AY, United Kingdom