Multistimuli Responsive Heteroleptic Iridium (III) Complex: Role of Hydrogen Bonding in Probing Solvent, pH and Bovine Serum Albumin (BSA) Vishal Kachwal a , Parva Kumar Sharma b , Amrit Sarmah c,d , Shibasish Chowdhury b *, Inamur Rahaman Laskar a * a) Department of Chemistry, BITS Pilani, Pilani campus Jhunjhunu Rajsthan 333031, India b) Department of Biological Science, BITS Pilani, Pilani campus Jhunjhunu Rajsthan 333031, India. c) Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo nám. 2, 16610 Prague 6, Czech Republic d) Regional Centre of Advanced Technologies and Materials, Palacký University, 77146 Olomouc, Czech Republic Electronic Supplementary Material (ESI) for Journal of Materials Chemistry C. This journal is © The Royal Society of Chemistry 2020